segfault on multipage tiff about hummusjs HOT 6 CLOSED

you might want to limit the loop to a valid number of pages. see if this helps. i'm not sure that the method prepares for a case where i is irrelevant.

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How can I get number of pages?

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well, hummus does not currently provide this info.
it shouldn't, however, be overly complex to provide it. after all libtiff is part of the underlying C++ code.

let me know if you have alternates on how to get the number of pages, otherwise we'll figure out how to expose this info.

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something like

for (var numberOfPages=0; true; numberOfPages++) {
    var page = pdfWriter.createPage(0,0,595,842);
    var cxt = pdfWriter.startPageContentContext(page);
    cxt.drawImage(0,0,'multipage.tiff',{index:numberOfPages,transformation:{width:595, height:842, proportional:true}});
    try {
      pdfWriter.writePage(page);
    } catch(e) {
      break;
    }   
}

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Thanks. this method should leave some unwanted objects in the page. i still prefer that you'll be able to predict the number of pages and avoid writing anything unwanted.

Checked in/published new version now. to get the number of pages for any image (this includes pdf) use the following new method getImagePagesCount:

var pageCount = pdfWriter.getImagePagesCount('./TestMaterials/images/tiff/multipage.tif');

good luck,
Gal.

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then segfault doesn't matter
Thanks a lot.

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