A Pure ruby library to merge PDF files, number pages and maybe more...
License: MIT License
My name is Boaz Segev and I'm:
I'm available by:
My intention is to leave this world in a more compassionate, loving and free state than it was when I entered it.
We combine a background document with a letter - This document contains text in an embedded font. By it's own it looks just fine - after the merge single characters are missing and replaced by a box.
So I'm pulling down a remote PDF file on Heroku. I want to add a watermark on it. This works perfect locally on Mac, but in production on Heroku it's failing. This is how I'm doing it
So I'm pulling down a remote PDF file on Heroku. I want to add a watermark on it. This works perfect locally on Mac, but in production on Heroku it's failing. This is how I'm doing it
def pdf(number)
require 'open-uri'
company_logo = CombinePDF.new("logo.pdf").pages[0]
open("#{number}.pdf", 'wb') do |file|
file << open("http://patentimages.storage.googleapis.com/pdfs/#{number}.pdf").read
end
pdf = CombinePDF.new open("#{number}.pdf").read
pdf.pages.each {|page| page << company_logo}
pdf.save "#{number}.pdf"
end
However this line is failing:
pdf = CombinePDF.new contents
With this:
ArgumentError: string contains null byte
Also before the error I see this:
PDF 1.5 Object streams found - they are not fully supported! attempting to extract objects.
Again this works perfectly locally on Mac without any changes in code. What am I missing?
Btw, number in this case is "US5409533"
I'm running this gem for my project where i need to combine multiple pdf into single pdf file.
It seems ruby process takes more and more memory with every pdf.
have script that combines latest version of a PDF from several folders in a hierarchy - combining them into a single PDF.
Under 0.2.17 it works as expected - under 0.2.18 I get an error when adding the second pdf to the new document.
error:
C:/Ruby22-x64/lib/ruby/gems/2.2.0/gems/combine_pdf-0.2.18/lib/combine_pdf/pdf_public.rb:303:in `insert': undefined method `update' for nil:NilClass (NoMethodError)
from C:/Ruby22-x64/lib/ruby/gems/2.2.0/gems/combine_pdf-0.2.18/lib/combine_pdf/pdf_public.rb:275:in `<<'
from C:/Users/User02/Documents/combinePDF/combine.rb:62:in `block in <main>'
from C:/Users/User02/Documents/combinePDF/combine.rb:57:in `each'
from C:/Users/User02/Documents/combinePDF/combine.rb:57:in `<main>'
ruby code
# file_list is an array of PDF files - something like:
# ["R:/Project DS/C/A1_3_151203_Construction.pdf", "R:/Project DS/B/A1_2_160410_Permit_Revisions.pdf","R:/Project DS/C/A1_3_160412_More_Permit_Revisions.pdf"]
pdf_merge = CombinePDF.new
file_list.each do |pdf_file|
pdf_merge << CombinePDF.load(pdf_file)
end
Hi,
I have PDF created by PaperPort 12 (probably http://www.nuance.com/imaging/paperport/paperport-upgrade-to-12.asp, but not sure), and convert_pdf create document with empty pages.
How to reproduce:
require "combine_pdf"
require "pp"
pdf = CombinePDF.load("./couldnt-connect-refrence.pdf");
pdf.number_pages
pdf.save "out.pdf"$ ruby com.rb
couldn't connect a reference!!! could be a null or removed (empty) object, Silent error!!!
Object raising issue: {:is_reference_only=>true, :indirect_generation_number=>0, :indirect_reference_id=>8, :referenced_object=>nil}
couldn't connect a reference!!! could be a null or removed (empty) object, Silent error!!!
Object raising issue: {:is_reference_only=>true, :indirect_generation_number=>0, :indirect_reference_id=>7, :referenced_object=>nil}
couldn't connect a reference!!! could be a null or removed (empty) object, Silent error!!!
Object raising issue: {:is_reference_only=>true, :indirect_generation_number=>0, :indirect_reference_id=>11, :referenced_object=>nil}
couldn't connect a reference!!! could be a null or removed (empty) object, Silent error!!!
Object raising issue: {:is_reference_only=>true, :indirect_generation_number=>0, :indirect_reference_id=>10, :referenced_object=>nil}
more info:
$ pdfinfo couldnt-connect-refrence.pdf
Title:
Subject:
Keywords:
Author:
Creator: PaperPort 12
Producer: PaperPort 12
CreationDate: Fri Nov 13 13:42:58 2015
ModDate: Fri Nov 13 13:42:58 2015
Tagged: no
UserProperties: no
Suspects: no
Form: none
JavaScript: no
Pages: 2
Encrypted: no
Page size: 612 x 841.68 pts
Page rot: 0
File size: 466188 bytes
Optimized: no
PDF version: 1.3
$ pdfinfo out.pdf
Title:
Subject:
Keywords:
Author:
Creator: PaperPort 12
Producer: Ruby CombinePDF 0.2.11 Library
CreationDate: Wed Nov 18 12:57:23 2015
ModDate: Wed Nov 18 12:57:23 2015
Tagged: no
UserProperties: no
Suspects: no
Form: none
JavaScript: no
Pages: 2
Encrypted: no
Page size: 612 x 841.68 pts
Page rot: 0
File size: 240627 bytes
Optimized: no
PDF version: 1.3
Hello,
I have problem with PDF generated by convert-jpg-to-pdf.net (created not by me, but our users),
Example:
require "combine_pdf"
pdf = CombinePDF.load("lena.pdf")
pdf.number_pages
pdf.save("lena-pagenumbers.pdf")
File lena-pagenumbers.pdfis broken and displays empty page.
BTW: PDFinfo shows "producer":
pdfinfo lena.pdf|grep Producer
Producer: PDFlib Lite 7.0.5p3 (PHP5/Linux-x86_64)
pdfinfo lena-pagenumbers.pdf|grep Producer
Producer: Ruby CombinePDF 0.2.9 Library
How to reproduce:
.jpg (http://www.cs.cmu.edu/~chuck/lennapg/len_std.jpg)
CombinePDF to add page numbers (or whatever) and save resultI am using Rails Prawn to generate two files. Both of them work fine. After I tried combine them to one file, it gives error 'Failed to load PDF document'. I am able to open it with Preview or AdobeAcrobat. It gives error only when I try to display it in the browser. Any ideas?
pdf = CombinePDF.new
pdf << CombinePDF.parse(pdf1.render)
pdf << CombinePDF.parse(pdf2.render)
respond_to do |format|
format.pdf do
send_data pdf, :filename => "Receipt.pdf", :type => "application/pdf", :disposition => "inline"
end
end
Some PDF objects will be ignored by Acrobat Reader on Mac (and maybe on windows), so that empty pages or missing data (when stamped) might be seen when using Acrobat Reader to read the PDF data.
The cause is yet unknown.
The issue was discovered with Imanol's help from http://unoycero.com
Is there currently an easy way to skip pages for numbering? For example specifying pages or skipping odd/even pages?
The current Flate Filter support is very basic and it is limited to basic zlib compression.
We need to add support for zlib with parameters (TIFF and PNG groups variations).
After completing the Flate filter, more filter support might be explored (although they are rarely used in a way that is required - as currently filters are only required for extracting Content Stream objects from the PDF.
I'm not sure if this is a genuine issue or if I'm doing something incorrectly.
I have this code which worked correctly in 0.2.6. It loads a prawn pdf then loads blank.pdf and stamps a different prawn generated pdf onto it and combines them
prawn_pdf = render_to_string "/forms/show.pdf"
pdf = CombinePDF.parse(prawn_pdf)
blank_declaration = CombinePDF.load("#{Rails.root}/public/blank.pdf")
signature_pdf_data = render_to_string "/electronic_signatures/signature.pdf"
signature_pdf = CombinePDF.parse(signature_pdf_data)
blank_declaration.pages.first << signature_pdf.pages.first # error on this line
pdf << blank_declaration
After updating to 0.2.8 I get this error on the line mentioned above
NoMethodError (undefined method `[]' for nil:NilClass):
This seems to relate to the changes mentioned in issue #32
I've reverted to 0.2.6 for now which is working fine anyway.
Cheers for the awesome gem!
The standard 14 PDF fonts have an uncertain future and the recommendation is to embed fonts, even for those 14 standard fonts.
For the future of the numbering feature, we need to enable embedding fonts as part of the PDFWriter or PDF object.
There are a number of issues to think about:
On this matter, thought should be given to the question, weather the "add_referenced" method have a better duplication recognition algorithm then the basic one currently in place. Speed performance should overrule space conservation.
Hence, it is more important to have pristine support for limited number of fonts (maybe only TrueType fonts, maybe only OpenType fonts or maybe a closed library of specific unicode royalty-free fonts) rather then an extensive font library.
It seems to me that having a library of hard-coded fonts might be the best solution for allowing the use of Unicode in the page numbering and text box features.
Hi, I'm getting an error when trying to load the pdf data for a certain pdf:
https://docs.google.com/file/d/0B4AGXAJrQz1RNE5OZHFTdWIycHc/edit?pli=1
pdf = CombinePDF.new('/home/stefan/Useful_KI_Information.pdf')
didn't find reference {:is_reference_only=>true, :indirect_generation_number=>0, :indirect_reference_id=>34}
Couldn't connect all values from references - didn't find reference {:DecodeParms=>{:Columns=>5, :Predictor=>12}, :Filter=>:FlateDecode, :ID=>["\xE9\xE3\xD7l\x19\v\xC9\x11\xB1\xD9\x99yM){\x1F", "'J\xB0\xCCk\xB4\xDFO\xA6\x83V\x9F\x1DM\x13\xB5"], :Index=>[35, 34], :Info=>nil, :Length=>112, :Prev=>253565, :Root=>{:is_reference_only=>true, :indirect_generation_number=>0, :indirect_reference_id=>36}, :Size=>35, :Type=>:XRef, :W=>[1, 3, 1], :raw_stream_content=>"h\xDEbb\x00\x01&F\x86\x1D\xB5\fL\f\f\x8C\xC7\x81$\xA3\x18\x0F\x98}\eD2\x80E\xA6\xBEG\x88\x80\xD50L\x9A\x0E\"\x99\xD7\x81H&\x7F\x90\x9A\xFD%`\xF6\x15\xB0\x9AV\x10\xC9\xCD\vVs\n,\xD2\x05\"\xF9\x0E\x81\xCD\x04\xEBe\xBC\x0F\xB4\xF7\xAFR\eX\x84\x19L\xB2\x81I\x06Ft\x92\xF9/vqF$q\xA6\xFF`\x11\x06\x80\x00\x03\x00\xBD\xCF\x14\\\r", :indirect_generation_number=>0, :indirect_reference_id=>20}!!!
didn't find reference {:is_reference_only=>true, :indirect_generation_number=>0, :indirect_reference_id=>34}
Couldn't connect all values from references - didn't find reference {:DecodeParms=>{:Columns=>5, :Predictor=>12}, :Filter=>:FlateDecode, :ID=>["\xE9\xE3\xD7l\x19\v\xC9\x11\xB1\xD9\x99yM){\x1F", "'J\xB0\xCCk\xB4\xDFO\xA6\x83V\x9F\x1DM\x13\xB5"], :Index=>[35, 34], :Info=>nil, :Length=>112, :Prev=>253565, :Root=>{:Metadata=>{:is_reference_only=>true, :indirect_generation_number=>0, :indirect_reference_id=>17}, :PageLabels=>{:is_reference_only=>true, :indirect_generation_number=>0, :indirect_reference_id=>31}, :Pages=>{:is_reference_only=>true, :indirect_generation_number=>0, :indirect_reference_id=>33}, :Type=>:Catalog, :indirect_generation_number=>0, :indirect_reference_id=>36}, :Size=>35, :Type=>:XRef, :W=>[1, 3, 1], :raw_stream_content=>"h\xDEbb\x00\x01&F\x86\x1D\xB5\fL\f\f\x8C\xC7\x81$\xA3\x18\x0F\x98}\eD2\x80E\xA6\xBEG\x88\x80\xD50L\x9A\x0E\"\x99\xD7\x81H&\x7F\x90\x9A\xFD%`\xF6\x15\xB0\x9AV\x10\xC9\xCD\vVs\n,\xD2\x05\"\xF9\x0E\x81\xCD\x04\xEBe\xBC\x0F\xB4\xF7\xAFR\eX\x84\x19L\xB2\x81I\x06Ft\x92\xF9/vqF$q\xA6\xFF`\x11\x06\x80\x00\x03\x00\xBD\xCF\x14\\\r", :indirect_generation_number=>0, :indirect_reference_id=>20}!!!
couldn't connect a reference!!! could be a null or removed (empty) object, Silent error!!!
Object raising issue: {:is_reference_only=>true, :indirect_generation_number=>0, :indirect_reference_id=>34, :referenced_object=>nil}
couldn't connect a reference!!! could be a null or removed (empty) object, Silent error!!!
Object raising issue: {:is_reference_only=>true, :indirect_generation_number=>0, :indirect_reference_id=>31, :referenced_object=>nil}
couldn't connect a reference!!! could be a null or removed (empty) object, Silent error!!!
Object raising issue: {:is_reference_only=>true, :indirect_generation_number=>0, :indirect_reference_id=>33, :referenced_object=>nil}
couldn't connect a reference!!! could be a null or removed (empty) object, Silent error!!!
Object raising issue: {:is_reference_only=>true, :indirect_generation_number=>0, :indirect_reference_id=>33, :referenced_object=>nil}
couldn't connect a reference!!! could be a null or removed (empty) object, Silent error!!!
Object raising issue: {:is_reference_only=>true, :indirect_generation_number=>0, :indirect_reference_id=>55, :referenced_object=>nil}
couldn't connect a reference!!! could be a null or removed (empty) object, Silent error!!!
Object raising issue: {:is_reference_only=>true, :indirect_generation_number=>0, :indirect_reference_id=>33, :referenced_object=>nil}
couldn't connect a reference!!! could be a null or removed (empty) object, Silent error!!!
Object raising issue: {:is_reference_only=>true, :indirect_generation_number=>0, :indirect_reference_id=>21, :referenced_object=>nil}
couldn't connect a reference!!! could be a null or removed (empty) object, Silent error!!!
Object raising issue: {:is_reference_only=>true, :indirect_generation_number=>0, :indirect_reference_id=>33, :referenced_object=>nil}
couldn't connect a reference!!! could be a null or removed (empty) object, Silent error!!!
Object raising issue: {:is_reference_only=>true, :indirect_generation_number=>0, :indirect_reference_id=>22, :referenced_object=>nil}
couldn't connect a reference!!! could be a null or removed (empty) object, Silent error!!!
Object raising issue: {:is_reference_only=>true, :indirect_generation_number=>0, :indirect_reference_id=>33, :referenced_object=>nil}
couldn't connect a reference!!! could be a null or removed (empty) object, Silent error!!!
Object raising issue: {:is_reference_only=>true, :indirect_generation_number=>0, :indirect_reference_id=>23, :referenced_object=>nil}
Using ruby 2.1.5. It's working for every PDF I've tried except this one.. also, looking through issues it's potentially related to #6
I want to add textboxes to an existing page and everything is working fine, except German special characters are not output correctly.
page.textbox("ßöäüÖÄÜ", address_options)
becomes
in the pdf file. Is there some sort of workaround?
When I open a PDF generated by combine_pdf in Adobe Acrobat Reader DC, there are a couple issues:
If I add a Sticky Note to it and save the file, the Sticky Note shows on every page of the PDF.
On a PC, I get an error from Acrobat: "The document could not be saved. There was a problem reading this document. (23)"
Has anyone else come across this?
Thanks
After upgraded to Nov 4th release, I now receive this error:
"no implicit conversion of Symbol into Integer"
Here is a portion of the backtrace:
combine_pdf (0.2.10) lib/combine_pdf/page_methods.rb:616:in `[]'
combine_pdf (0.2.10) lib/combine_pdf/page_methods.rb:616:in `init_contents'
combine_pdf (0.2.10) lib/combine_pdf/page_methods.rb:601:in `block in copy'
combine_pdf (0.2.10) lib/combine_pdf/page_methods.rb:601:in `instance_exec'
combine_pdf (0.2.10) lib/combine_pdf/page_methods.rb:601:in `copy'
combine_pdf (0.2.10) lib/combine_pdf/page_methods.rb:58:in `inject_page'
combine_pdf (0.2.10) lib/combine_pdf/page_methods.rb:49:in `<<'
CombinePDF.new('mypdf.pdf')
.../Ruby200/lib/ruby/gems/2.0.0/gems/combine_pdf-0.1.18/lib/combine_pdf/
combine_pdf_parser.rb:163:in `_parse_': undefined method`[]' for nil:NilClass (
NoMethodError)
Ruby 2.0.0p481 / Win7 / Version 0.1.18
Work fine on ruby 2.2.0p0@debian
Try to give you more debug info later.
Hi - I'm looking at combine_pdf to get around the issues with prawn-templates. I have a PDF document that is a form (not a fillable PDF form, just an ordinary PDF created in Word that makes a printed paper form). Then I'm creating a PDF in prawn that looks like the form is filled out when the form is in the background and the user data is laid over it. Prawn-templates worked great for that, but I don't want to be stuck at 0.15 forever - so here we are.
I'm doing some very preliminary experiments with combine_pdf - when I do the following with one of my PDFs that will act as the background:
CombinePDF.new(template_file)
I get this error:
undefined method `empty?' for #<Enumerator: "Identity":bytes>
combine_pdf (0.1.9) lib/combine_pdf/combine_pdf_parser.rb:210:in `_parse_'
and in the log file, there are the messages:
Couldn't connect all values from references - didn't find reference {a big hash}!!!
PDF 1.5 Object streams found - they are not fully supported! attempting to extract objects.
is there perhaps a way to generate my template file, or use Acrobat to get rid of the object streams (e.g. saving it while forcing compatibility with older versions of Acrobat)? I have control of the template file, so if it's possible to generate it in a way that doesn't use object streams, I can do that.
Thanks for your help.
This issue was reported by Saba.
Looking into the issue, I discovered that the Wicked PDF's engine ( wkhtmltopdf ) doesn’t wrap the PDF content streams correctly.
to be more technical:
Immediately at the start of each page’s content stream, wkhtmltopdf creates a 'transformation' to the drawing engine (using the PDF command: 0.060000000 0 0 -0.060000000 28.3200000 813.679999 cm)…
This transformation isn’t wrapped in a container (the PDF commands q and Q), so that the transformation effects all the content streams as well as the original content.
The end result is that the stamped content (page numbering / watermark / overlaid page) is resized and appears inverted (upside down and mirror like) in the top left corner of the PDF page - which is an unexpected bug caused by this malformed PDF.
This was fixed by injecting a wrapper around the all the content streams, each time content is injected to an existing PDF page.
with some pdfs I have strange error:
NoMethodError: undefined method `[]' for nil:NilClass
from /path_to_gem/ruby/2.2.0/gems/combine_pdf-0.2.17/lib/combine_pdf/page_methods.rb:876:in `block (2 levels) in should_secure?'
I have digg into that code and debug that v variable has this value:
{:F6=>{:is_reference_only=>true, :referenced_object=>{:Type=>:Font, :Subtype=>:TrueType, :BaseFont=>:"Arial-BoldMT", :FirstChar=>30, :LastChar=>255, :Encoding=>:WinAnsiEncoding, :Widths=>[750, 750, 278, 333, 474, 556, 556, 889, 722, 238, 333, 333, 389, 584, 278, 333, 278, 278, 556, 556, 556, 556, 556, 556, 556, 556, 556, 556, 333, 333, 584, 584, 584, 611, 975, 722, 722, 722, 722, 667, 611, 778, 722, 278, 556, 722, 611, 833, 722, 778, 667, 778, 722, 667, 611, 722, 667, 944, 667, 667, 611, 333, 278, 333, 584, 556, 333, 556, 611, 556, 611, 556, 333, 611, 611, 278, 278, 556, 278, 889, 611, 611, 611, 611, 389, 556, 333, 611, 556, 778, 556, 556, 500, 389, 280, 389, 584, 750, 556, 750, 278, 556, 500, 1000, 556, 556, 333, 1000, 667, 333, 1000, 750, 611, 750, 750, 278, 278, 500, 500, 350, 556, 1000, 333, 1000, 556, 333, 944, 750, 500, 667, 278, 333, 556, 556, 556, 556, 280, 556, 333, 737, 370, 556, 584, 333, 737, 552, 400, 549, 333, 333, 333, 576, 556, 333, 333, 333, 365, 556, 834, 834, 834, 611, 722, 722, 722, 722, 722, 722, 1000, 722, 667, 667, 667, 667, 278, 278, 278, 278, 722, 722, 778, 778, 778, 778, 778, 584, 778, 722, 722, 722, 722, 667, 667, 611, 556, 556, 556, 556, 556, 556, 889, 556, 556, 556, 556, 556, 278, 278, 278, 278, 611, 611, 611, 611, 611, 611, 611, 549, 611, 611, 611, 611, 611, 556, 611, 556], :FontDescriptor=>{:is_reference_only=>true, :referenced_object=>{:Type=>:FontDescriptor, :Ascent=>728, :CapHeight=>0, :Descent=>-210, :Flags=>42, :FontBBox=>[-628, -376, 2000, 1018], :FontName=>:Arial_Bold, :ItalicAngle=>0, :StemV=>0}}}}, :F7=>{:is_reference_only=>true, :referenced_object=>{:Type=>:Font, :Subtype=>:TrueType, :BaseFont=>:ArialMT, :FirstChar=>30, :LastChar=>255, :Encoding=>:WinAnsiEncoding, :Widths=>[750, 750, 278, 278, 355, 556, 556, 889, 667, 191, 333, 333, 389, 584, 278, 333, 278, 278, 556, 556, 556, 556, 556, 556, 556, 556, 556, 556, 278, 278, 584, 584, 584, 556, 1015, 667, 667, 722, 722, 667, 611, 778, 722, 278, 500, 667, 556, 833, 722, 778, 667, 778, 722, 667, 611, 722, 667, 944, 667, 667, 611, 278, 278, 278, 469, 556, 333, 556, 556, 500, 556, 556, 278, 556, 556, 222, 222, 500, 222, 833, 556, 556, 556, 556, 333, 500, 278, 556, 500, 722, 500, 500, 500, 334, 260, 334, 584, 750, 556, 750, 222, 556, 333, 1000, 556, 556, 333, 1000, 667, 333, 1000, 750, 611, 750, 750, 222, 222, 333, 333, 350, 556, 1000, 333, 1000, 500, 333, 944, 750, 500, 667, 278, 333, 556, 556, 556, 556, 260, 556, 333, 737, 370, 556, 584, 333, 737, 552, 400, 549, 333, 333, 333, 576, 537, 333, 333, 333, 365, 556, 834, 834, 834, 611, 667, 667, 667, 667, 667, 667, 1000, 722, 667, 667, 667, 667, 278, 278, 278, 278, 722, 722, 778, 778, 778, 778, 778, 584, 778, 722, 722, 722, 722, 667, 667, 611, 556, 556, 556, 556, 556, 556, 889, 500, 556, 556, 556, 556, 278, 278, 278, 278, 556, 556, 556, 556, 556, 556, 556, 549, 611, 556, 556, 556, 556, 500, 556, 500], :FontDescriptor=>{:is_reference_only=>true, :referenced_object=>{:Type=>:FontDescriptor, :Ascent=>728, :CapHeight=>0, :Descent=>-210, :Flags=>42, :FontBBox=>[-665, -325, 2000, 1006], :FontName=>:Arial, :ItalicAngle=>0, :StemV=>0}}}}, :F21=>{:is_reference_only=>true, :referenced_object=>{:Type=>:Font, :Subtype=>:TrueType, :BaseFont=>:"Arial-ItalicMT", :FirstChar=>30, :LastChar=>255, :Encoding=>:WinAnsiEncoding, :Widths=>[750, 750, 278, 278, 355, 556, 556, 889, 667, 191, 333, 333, 389, 584, 278, 333, 278, 278, 556, 556, 556, 556, 556, 556, 556, 556, 556, 556, 278, 278, 584, 584, 584, 556, 1015, 667, 667, 722, 722, 667, 611, 778, 722, 278, 500, 667, 556, 833, 722, 778, 667, 778, 722, 667, 611, 722, 667, 944, 667, 667, 611, 278, 278, 278, 469, 556, 333, 556, 556, 500, 556, 556, 278, 556, 556, 222, 222, 500, 222, 833, 556, 556, 556, 556, 333, 500, 278, 556, 500, 722, 500, 500, 500, 334, 260, 334, 584, 750, 556, 750, 222, 556, 333, 1000, 556, 556, 333, 1000, 667, 333, 1000, 750, 611, 750, 750, 222, 222, 333, 333, 350, 556, 1000, 333, 1000, 500, 333, 944, 750, 500, 667, 278, 333, 556, 556, 556, 556, 260, 556, 333, 737, 370, 556, 584, 333, 737, 552, 400, 549, 333, 333, 333, 576, 537, 333, 333, 333, 365, 556, 834, 834, 834, 611, 667, 667, 667, 667, 667, 667, 1000, 722, 667, 667, 667, 667, 278, 278, 278, 278, 722, 722, 778, 778, 778, 778, 778, 584, 778, 722, 722, 722, 722, 667, 667, 611, 556, 556, 556, 556, 556, 556, 889, 500, 556, 556, 556, 556, 278, 278, 278, 278, 556, 556, 556, 556, 556, 556, 556, 549, 611, 556, 556, 556, 556, 500, 556, 500], :FontDescriptor=>{:is_reference_only=>true, :referenced_object=>{:Type=>:FontDescriptor, :Ascent=>728, :CapHeight=>0, :Descent=>-208, :Flags=>106, :FontBBox=>[-517, -325, 1359, 998], :FontName=>:Arial_Italic, :ItalicAngle=>-12, :StemV=>0}}}}, :F37=>{:is_reference_only=>true, :referenced_object=>{:Type=>:Font, :Subtype=>:TrueType, :BaseFont=>:"Arial-BoldItalicMT", :FirstChar=>30, :LastChar=>255, :Encoding=>:WinAnsiEncoding, :Widths=>[750, 750, 278, 333, 474, 556, 556, 889, 722, 238, 333, 333, 389, 584, 278, 333, 278, 278, 556, 556, 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while k is equal to :Font
so as a work arround add additional check actual_value(v[k]) to this string:
v.keys.each do |name| return true if actual_value(foreign_res[k]) && actual_value(foreign_res[k])[name] && actual_value(v[k]) && actual_value(foreign_res[k])[name] != actual_value(v[k])[name]
code
Thanks for the quick reply for my previous answer.
I have another question or 2. Can you tell me please if I can achieve this with combine_pdf?
A very slow method would be to iterate each page, get the current page number, replace the page numbering placeholder from the HTML footer with the current page number, convert the HTML template to PDF than merge it. However, the performance will be incredibly low.
I'm thinking if I can calculate the position of the page numbering placeholder on the footer and use the coordinates in your page_numbering function. But I'm not sure if how it works....
The footer will also have links or links with images to external websites.
Thank you
Hey,
I'm looking for days for a solution and couldn't find it. I know you can stamp, merge 2 pdf, but is there a way that I can only the links addresses of the document?
Visually the document should be the same, just the links should be different.
Thanks a lot
File opens in all other readers, but not in Adobe's. Unfortunately, this is the most popular reader.
I was able to fix files with ghostscript (installed in ubuntu server by default I think) with code like this:
pdf = CombinePDF.new
files.each do |file|
pdf << CombinePDF.new(file)
File.unlink file
end
temp_file_name = Rails.root.join('tmp', Dir::Tmpname.make_tmpname(['fwsrp', '.pdf'], nil))
pdf.save(temp_file_name)
`gs -o #{file_name} -sDEVICE=pdfwrite -dPDFSETTINGS=/prepress #{temp_file_name}` # fix corrupt file output
This is the ghostscript output:
**** Warning: An error occurred while reading an XREF table.
**** The file has been damaged. This may have been caused
**** by a problem while converting or transfering the file.
**** Ghostscript will attempt to recover the data.
After this file opens in Adobe Reader, hope it helps to find the issue, or at least as a temporary fix for generated files.
I need to stamp a logo in a file signed, but when I use
pdf = CombinePDF.load "signed_document.pdf"
pdf.save "signed_stamped_document.pdf"
the signature was deleted
so...this gem support or will support files signed?
hi @boazsegev
It seems the library is having an issue loading pdf file that is creating using Adobe LiveCycle (containing xml file).
here is the error I got
Hello
It it possible to combine multiple pdf with Destination property?
I have two PDFs. one is pdf which has destination property. (link text)
The other one is pdf which has no destination properly.
I can combine two PDF, but destination property broken.
This is sample.
https://gist.github.com/hiroyuki-sato/ce48110f34accec1f837
Thank you for your advice.
Hiroyuki Sato.
I'm trying to combine PDFs that were saved on S3 using PaperClip.
Controller code:
pdf = CombinePDF.new
@costproject.attachments.each do |attachment|
pdf << CombinePDF.new(attachment.attach.path)
end
send_file pdf, :disposition => 'inline', :type => "application/pdf"
I'm getting "stack level too deep"
Is there a way to make this work?
Thanks!
I am trying to add the first page of one pdf file as background of every page of another pdf file. This works fine for most normal files but I have found some files which won't work. You can find one example at https://www.dropbox.com/s/p0m6fd59st42kkd/bg_ftc.pdf?dl=0
The file was created with word afaik (sorry for that).
You can reproduce my problem with the following minmal example:
b = CombinePDF.load("bg_ftc.pdf").pages[0].copy(true)
o = CombinePDF.new
o << [b]
o.save "o.pdf"
Hi @boazsegev,
Sometimes I got this error when combine two pdf file:
no implicit conversion of Symbol into Integer
.../ruby/2.0.0/gems/combine_pdf-0.1.16/lib/combine_pdf/combine_pdf_pdf.rb:582:in `[]'
Please help me solve it.
Thanks for writing this awesome gem! When I add page numbers to my PDF, say at the bottom, it overlays whatever content may already exist there. How can I adjust the page number so it displays at a certain position in the margin/footer/header?
Thanks for your help.
So I'm trying to watermark on demand in my rails app. I'm using using Prawn to generate the stamp across a blank page, and then Combine_Pdf to combine that with watermark with an existing pdf file. The combine process has been successful so far, but I keep getting the warning "PDF 1.5 Object streams found - they are not fully supported! attempting to extract objects."
The watermarks from Prawn are only text objects, but is there anything I should do to avoid this warning message?
Some PDF files contain the Page's Resources dictionary (/Resources) in the Catalog instead of the Page objects.
These resources are wrongfully ignored by CombinePDF during the catalog rebuilding process...
These PDF files are rare, but it is a known issue.
This will take some work to resolve... I'm working on this.
i get the following runtime error "Optional Content PDF files aren't supported and their pages cannot be safely extracted", this is a one off error and doesn't normally happen so looks to be pdf specific.
I've had a look at the code but can you quickly clarify the issue here for me please. Thanks.
Some PDF files have (through history, or malformed authoring tools) more then one Catalog object.
This causes page objects to be duplicated more then once (as the PDF object merges the different catalogs)...
The pages shouldn't be duplicated, as there should be only one active Catalog object per file - the rest should be discarded.
Hello!
Please advise me with number_pages method. I used the next code:
# erasing previously generated file
if File::exist?('public/pdf/test_full.pdf')
File::delete('public/pdf/test_full.pdf')
end
# creating an object
pdf = CombinePDF.new()
# adding clear page
pdf.new_page
# setting up options for number_pages procedure
opt = {
:number_format => '%s',
:start_at => 1,
:font => :Times,
:margin_from_side => 0,
:margin_from_height => 0,
:location => [:bottom],
:font_size => 12
}
# running numbering
pdf.number_pages(opt)
# getting a result
pdf.save('public/pdf/test_full.pdf')
What I am waiting to receive: I want to see a blank page with "1" at the middle-bottom position of page.
What I received: "1" in strange position, as I wanted to add "1" to the center-right position of page. I attached a result file: test_full.pdf
First of all thank you very match for this great library. Can not figure out why so small amount of stars.
One issue i have.
@pdf_combiner = CombinePDF.new
#loop start
pdf = CombinePDF.new(pdf_path)
@pdf_combiner << pdf
#loop end
@pdf_combiner.number_pages
@pdf_combiner.save book_pdf_path if @pdf_combiner
#done!This code works. All pages merged and final pdf stored in file system.
Expect pages numbering.
Can non figure out what the problem is.
i try the following code.
combine_pdf = CombinePDF.new
combine_pdf << CombinePDF.parse(pdf_data)
got the following error
Warning: parser advnacing for unknown reason. Potential data-loss.
Warning: parser advnacing for unknown reason. Potential data-loss.
RuntimeError: Unknown PDF parsing error - maleformed PDF file?
spec
combine_pdf 0.2.14
I doubt the pdf_data is wrong or not supported yet.
"%PDF-1.4\n1 0 obj\n<<\n/Title (\xFE\xFFbSSpg\rR\xA1)\n/Producer (wkhtmltopdf)\n/CreationDate (D:20160224104241)\n>>\nendobj\n4 0 obj\n<<\n/Type /ExtGState\n/SA true\n/SM 0.02\n/ca 1.0\n/CA 1.0\n/AIS false\n/SMask /None>>\nendobj\n5 0 obj\n[/Pattern /DeviceRGB]\nendobj\n7 0 obj\n<<\n/Type /XObject\n/Subtype /Image\n/Width 14\n/Height 99\n/BitsPerComponent 8\n/ColorSpace /DeviceRGB\n/Length 8 0 R\n/Filter /DCTDecode\n>>\nstream\n\xFF\xD8\xFF\xE0\u0000\u0010JFIF\u0000\u0001\u0001\u0001\u0000`\u0000`\u0000\u0000\xFF\xDB\u0000C\u0000\u0002\u0001\u0001\u0002\u0001\u0001\u0002\u0002\u0002\u0002\u0002\u0002\u0002\u0002\u0003\u0005\u0003\u0003\u0003\u0003\u0003\u0006\u0004\u0004\u0003\u0005\a\u0006\a\a\a\u0006\a\a\b\t\v\t\b\b\n\b\a\a\n\r\n\n\v\f\f\f\f\a\t\u000E\u000F\r\f\u000E\v\f\f\f\xFF\xDB\u0000C\u0001\ (to be continued)"
Hi,
I'm considering using this gem and will give it a shot when I have some time, but I am not sure whether it suits my needs, as the documentation is overly simplistic.
I need to overlay a smaller PDF over a larger PDF, in a specific location. Is this possible? The samples simply "overlay" a PDF on top of another and that's it.
I suppose a workaround that might work is to ensure the "overlay" PDF is the same size as the "background" PDF, and just have the overlay PDF mostly transparent. Is this the suggested workaround?
Boaz,
This may be related to issue #10.
I have successfully created a combined pdf that includes costprojects and their S3 attachments.
It works fine, if I display the pdf in the web browser. But, I'm now trying to email the pdf to the user.
I'm getting "undefined method 'length' for #CombinePDF::PDF:0x007fa87c8de3a8" on this line of code attachments['Report.pdf'] = pdf
Here is my controller:
def pdfemail
@costprojects = Costproject.find(params[:costproject_ids])
respond_to do |format|
format.html
format.pdf do
pdf = CombinePDF.new
@costprojects.each do |costproject|
@costproject = costproject
pdf2 = render_to_string pdf: "Costproject.pdf", template: "costprojects/pdfemail", encoding: "UTF-8"
pdf << CombinePDF.parse(pdf2)
costproject.attachments.each do |attachment|
pdf << CombinePDF.parse( Net::HTTP.get( URI.parse( attachment.attach.url ) ) )
end
end
SendReport.send_report(pdf).deliver
redirect_to :back
flash[:notice] = 'Email containing pdf has been sent to you!'
end
end
end
This is the mailer:
class SendReport < ActionMailer::Base
def send_report(pdf)
tomail = "[email protected]"
frommail = "[email protected]"
attachments['Report.pdf'] = pdf
mail(
:to => tomail,
:from => frommail,
:subject => "Report pdf")
end
end
I am using Ruby 1.9.3
pdf includes:
(lots of stuff)
currentdict /CMap defineresource pop\nend\nend"}}}}}, :XObject=>{}}}, :Annots=>{:is_reference_only=>true, :referenced_object=>{:indirect_without_dictionary=>[]}}, :MediaBox=>[0, 0, 595, 842]}}], :Count=>2, :ProcSet=>[:PDF, :Text, :ImageB, :ImageC]}}}], @Version=1.4, @info={:Producer=>"Ruby CombinePDF Library by Boaz Segev"}, @string_output=:literal, @set_start_id=1>
Hello,
First of all, I'd like to thank you for you to provide this great PDF merge tool.
My client use some tools to generate PDF and turn out it will insert some random comments into the PDF file, here is a example:
5 0 obj
% [8496]
<<
/Filter /FlateDecode
/Length 3739
>>
stream
...
endstream
endobj
the line NO.2 will cause Runtime Error with message "Unknown PDF parsing error - maleformed PDF file?", my temporary solution is just ignore all comments but I'm not sure if I break something else, please advise, thanks again.
Hello! I want to use combine_pdf for parsing a ~ 300 pages pdf. But when I try to load this relatively big document via CombinePDF.load() memory usage increases drastically and it returns me a memory allocation usage: broken pipe(). It looks like I need to load just 1st page, edit it, then 2nd page, edit it and so on. Is there any ability to do it?
Some PDFs, specifically certain scanned PDF files (usually those with text recognition), cannot be injected with text objects.
The text injected into those PDF pages (I tried numbering the pages) was not rendered - or, as far as I could tell, was rendered as transparent (render mode 3) even when the mode operator (render modes 1 and 2) was present.
Shapes injected into the same pages were rendered correctly.
Seems as if the previous content streams (the ones after which the content is injected) override the later content streams (the injected data).
Reversing the streams order could not be tested, because the white page - although scanned - isn't transparent, so that the content "behind" it could not be observed.
Firstly thanks for the awesome gem!
I have a pdf that returns this error Unknown PDF parsing error - maleformed PDF file? when parsing.
Is it possible to check if a pdf is corrupt and not parse it if that is the case, so not to break the whole request?
I'm using version 0.2.14. The pdf in question is version 1.2.
Cheers!
Combining two PDF's with appropriate bookmarks and links to named destinations creates a pdf where
I see issue #31, but that shouldnt apply here because the pdf has different named destinations (resolved with GUIDs)
The current combine function doesn't support to compile pdf 1.5 object stream.
We get the output like this:
Starting to parse PDF data.
...
PDF 1.5 Object streams found - they are not fully supported! attempting to extract objects.
Attempting {:Type=>:ObjStm, :N=>18, :First=>127, :Length=>1253, :Filter=>:FlateDecode, :indirect_generation_number=>0, :indirect_reference_id=>8}
didn't find reference {:is_reference_only=>true, :indirect_generation_number=>0, :indirect_reference_id=>25}
Couldn't connect all values from references - didn't find reference {:Type=>:XRef, :Index=>[0, 28], :Size=>28, :W=>[1, 2, 1], :Root=>nil, :Info=>{:Producer=>"pdfTeX-1.40.15", :Creator=>"TeX", :CreationDate=>"D:20141023222449+07'00'", :ModDate=>"D:20141023222449+07'00'", :Trapped=>:False, :"PTEX.Fullbanner"=>"This is pdfTeX, Version 3.14159265-2.6-1.40.15 (TeX Live 2014/Arch Linux) kpathsea version 6.2.0", :indirect_generation_number=>0, :indirect_reference_id=>26}, :ID=>[25531, 1, 5, 56, 97, 0, 36, 2912, 6, 25531, 1, 5, 56, 97, 0, 36, 2912, 6], :Length=>88, :Filter=>:FlateDecode, :raw_stream_content=>"x\xDA\x15\xC8\xBB\x15@@\x14\x84\xE1\x99\xF5\xD8]\xD6\xAB#=H\xB5!\x17(@\x0F\x1A\xD2\x87#\x11J\x98\e|\xE7?3\x00>\x87@\x01\xD1Am\xA4\x95$\x1D\xEFh_/\x998\xFA\xCDv.\x85\x94\xE2\x99V\xFB\x02\xA7\xC3\x1A\xB9\xEC\xD6\x8A\xE7h\xADe\xE0\xF5\x82\xCF\x8C\x1F\xA4\xA4\n\xB0", :indirect_generation_number=>0, :indirect_reference_id=>27}!!!
setting parsed collection and returning collection.
connecting objects with their references (serialize_objects_and_references).
couldn't connect a reference!!! could be a null object, Silent error!!!
couldn't connect a reference!!! could be a null object, Silent error!!!
couldn't connect a reference!!! could be a null object, Silent error!!!
couldn't connect a reference!!! could be a null object, Silent error!!!
couldn't connect a reference!!! could be a null object, Silent error!!!
couldn't connect a reference!!! could be a null object, Silent error!!!
couldn't connect a reference!!! could be a null object, Silent error!!!
couldn't connect a reference!!! could be a null object, Silent error!!!
couldn't connect a reference!!! could be a null object, Silent error!!!
finished to initialize PDF object.
Resources re-building disabled as it isn't worth the price in peformance as of yet.
Formatting PDF output
Building XREF
How can I handle for this problem?
Getting error "The document could not be saved. There was a problem reading this document (23)." while trying to save the output file from Adobe Reader with "Save As optimizes for Fast Web View" preference enabled.
The issue was reported by Diyei Gomi that showed how certain PDF files, when stamped one on top of the other, can result in a malformed PDF being Rendered.
Looking into the issue, I discovered that Hex strings were parsed using a case-sensative method (which was a bug). fixing this seems to have fixed the issue on the PDF files used for testing.
Further testing and verification is required. A patched version will be released soon (hopefully one correcting the issue).
I am writing to one file and then combining with another, the blank file i write on has the correct co-ordinates and writes in the correct place, but when combined with the original file a top margin seems to be added, see screenshot below.
Can i remove the top margin when combining? or any ideas why this happens?
The RubyGem.org uses YARD documentation that ignores the @Private tag.
In order to make the library more accessible for developers and collaborators, the documentation needs to be re-organized.
Hello, i'm having some problems reading a pdf, the error is the one reported in the subject, the strange things is that it works just great in development, but in production i get this strange error. Also reading the file from console works correctly, both in dev or production enviroments
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