Object 39 is an image; but even Object 4 (the content stream of the first page; obj 93 *is* used on that page) has such a decompression error.
Ghostscript prints: warning: ignoring zlib error: incorrect data check So probably libqpdf (which is used for the very low-level pdf stuff in pdftopdf) should also handle this as warning instead of as error? -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to cups-filters in Ubuntu. https://bugs.launchpad.net/bugs/1670730 Title: pdftopdf "inflate data - incorrect data check" with certain PDFs Status in cups-filters package in Ubuntu: New Bug description: When /usr/lib/cups/filter/pdftopdf is processing certain PDF files, it stops with this error message: WARNING: ./file.pdf (file position 101510): error decoding stream data for object 39 0: stream inflate: inflate: data: incorrect data check ERROR: Exception: stream inflate: inflate: data: incorrect data check Example PDF (attached a copy, too) : https://shop.groveko.nl/images/products/7010209/VIB%20Suma%20Inox%20Classic%20D7%202016-03-31.pdf Adobe Pro doesn't seem to have any issues with these PDFs, so the error is probably not fatal for processing the file. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/cups-filters/+bug/1670730/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp

