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[Bug]: UnknownErrorException 'kidDict.getRaw is not a function' #19694

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gsamokovarov opened this issue Mar 20, 2025 · 1 comment · Fixed by #19702
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[Bug]: UnknownErrorException 'kidDict.getRaw is not a function' #19694

gsamokovarov opened this issue Mar 20, 2025 · 1 comment · Fixed by #19702
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@gsamokovarov
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gsamokovarov commented Mar 20, 2025 •
edited by Snuffleupagus
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Attach (recommended) or Link to PDF file

I cannot share the document that this happens to as it belongs to a customer, I'll try to get back to you with a reproducible document.

Web browser and its version

'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/134.0.0.0 Safari/537.36'

Operating system and its version

macPS

PDF.js version

4.10.38

Is the bug present in the latest PDF.js version?

Yes

Is a browser extension

No

Steps to reproduce the problem

I get a runtime error for certain documents during rendering: kidDict.getRaw is not a function. However, the document renders and works "just fine" for my needs.

I have tried to debug the error a bit and it happens on this line, because the line above kidDict = this.dict.xref.fetch(kid) returns a number, 1 in my case, and not a Dict object. I haven't followed the code enough to know what the number means, but it's certainly not the Dict object we expect in the code path.

Image

What is the expected behavior?

Not to issue a runtime error.

What went wrong?

Nothing, as far as I can see. There may be broken functionality we don't use, I dunno.

Link to a viewer

No response

Additional context

No response
@calixteman
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Without a pdf it's impossible to guess what's wrong.
If your pdf is too much private to be attached there but if it's acceptable I can see it, you can send it to me on my pro email.
For your information I'm the triage owner of the pdf component for Firefox: https://bugzilla.mozilla.org/enter_bug.cgi?product=Firefox&component=PDF%20Viewer.

calixteman added a commit to calixteman/pdf.js that referenced this issue Mar 21, 2025
@calixteman
In the struct tree a kid can be a reference to an MCID entry (issue m…
2ac39cb 
…ozilla#19694)
@calixteman calixteman linked a pull request Mar 21, 2025 that will close this issue
In the struct tree a kid can be a reference to an MCID entry (issue #19694) #19702
Merged
calixteman added a commit to calixteman/pdf.js that referenced this issue Mar 25, 2025
@calixteman
In the struct tree a kid can be a reference to an MCID entry (issue m…
dee80cb 
…ozilla#19694)
calixteman added a commit that referenced this issue Mar 25, 2025
@calixteman
Merge pull request #19702 from calixteman/issue19694
d4c7aaa 
In the struct tree a kid can be a reference to an MCID entry (issue #19694)
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In the struct tree a kid can be a reference to an MCID entry (issue #19694) calixteman/pdf.js
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@gsamokovarov @Snuffleupagus @calixteman