pdfjs-dist

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Commit Graph

Author	SHA1	Message	Date
Jonas Jenwald	a22f0ae820	Only skip parsing a stream in `Parser_makeFilter` when we know for sure that it is empty (PR 6372 follow-up) For PDF files with multiple `/Filter`s, where the `/Length` entry is zero, we fail to render the file correctly. The reason is that `maybeLength` is `null` for the every filter except the first, and `!maybeLength` is thus truthy. Hence it seems that we should completely ignore the `/Length` entry and also explicitly check `maybeLength === 0`. Note that I've not (yet) come across a PDF file with this issue in the wild, but given all the stupid things PDF generators do I wouldn't be surprised if such a file actually exists. In order to prevent a possible future bug, I'm submitting this patch which includes a hand-edited PDF file that we currently cannot render correctly (but e.g. Adobe Reader can).	9 years ago
notmasteryet	303f5cd07b	Add bad PDF with lots of extra bytes at the end	14 years ago

Author

SHA1

Message

Date

Jonas Jenwald

a22f0ae820

Only skip parsing a stream in `Parser_makeFilter` when we know for sure that it is empty (PR 6372 follow-up)

For PDF files with multiple `/Filter`s, where the `/Length` entry is zero, we fail to render the file correctly. The reason is that `maybeLength` is `null` for the every filter except the first, and `!maybeLength` is thus truthy.
Hence it seems that we should completely ignore the `/Length` entry and also explicitly check `maybeLength === 0`.

Note that I've not (yet) come across a PDF file with this issue in the wild, but given all the stupid things PDF generators do I wouldn't be surprised if such a file actually exists. In order to prevent a possible future bug, I'm submitting this patch which includes a hand-edited PDF file that we currently cannot render correctly (but e.g. Adobe Reader can).

9 years ago

notmasteryet

303f5cd07b

Add bad PDF with lots of extra bytes at the end

14 years ago

1 Commits (ba012c7a683bef9117ca3e5206c8949432d82113)