I can verify that the *cat2*.pdf file matches your description, displaying incorrectly in Chromium 106.0.5249.119 and correctly on Evince and Zathura.
However, if I generate it myself from pdfarranger t2210-f1040.pdf t2210-1040s1.pdf t2210-1040s2.pdf , with PDF-Arranger 1.8.2-1, the problem no longer occurs. I see two possible conclusions: - The concatenated file in your zip (and thus 1.4.2-1) has a bug such that its rendering relies undefined behavior — but I don't know if there is such a thing; or - Chromium has a bug and renders a fine PDF incorrectly. -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to chromium-browser in Ubuntu. https://bugs.launchpad.net/bugs/1993021 Title: Chromium displays form fields of a PDF different/wrong Status in chromium-browser package in Ubuntu: New Bug description: With Evince-3.36.10-0ubuntu1, fill in US-IRS PDF Y2020 tax forms (f1040, f1040s1, f1040s2) and save. With PDF-Arranger 1.4.2-1: [+] t2210-f1040.pdf [+] t2210-1040s1.pdf [+] t2210-1040s2.pdf Export (down-arrow icon) t2210-tax-cat2.pdf - popped up warnings in dialog box: The metadata field /Accessibility with value 'structured; tagged' has no XMP equivalent, so it was discarded The metadata field /Form with value 'fillable' has no XMP equivalent, so it was discarded Display of t2210-tax-cat2.pdf page 3 (f1040 s1): * chromium-browser-106.0.5249.91: incorrectly displays form entry in lines 2b, 5, 7, 8-lhs, 11, 13, 16, 21. * evince-3.36.10-0ubuntu1: correct (lines 1, 3, 9, 14 only) * firefox-104: correct (lines 1, 3, 9, 14 only) * xpdf-3.04-7: correct (lines 1, 3, 9, 14 only) Display of t2210-tax-cat2.pdf page 4 (f1040 s2): * chromium-browser-106.0.5249.91: incorrectly displays form entry in lines 1, 3, 6, 7b, 8, 8c * evince-3.36.10-0ubuntu1: correctly blank except lines 4 & 10. * firefox-104: correctly blank except lines 4 & 10. * xpdf-3.04-7: correctly blank except lines 4 & 10. Ubuntu-20.04.5/Linux-5.4.0/amd64 ProblemType: Bug DistroRelease: Ubuntu 20.04 ProcVersionSignature: Ubuntu 5.4.0-125.141-generic 5.4.195 Uname: Linux 5.4.0-125-generic x86_64 ApportVersion: 2.20.11-0ubuntu27.24 Architecture: amd64 CasperMD5CheckResult: skip CurrentDesktop: Unity:Unity7:ubuntu Date: Fri Oct 14 20:40:01 2022 EcryptfsInUse: Yes InstallationDate: Installed on 2018-11-21 (1424 days ago) InstallationMedia: Ubuntu 18.04.1 LTS "Bionic Beaver" - Release amd64 (20180725) Snap: chromium 106.0.5249.119 (latest/stable) SnapSource: ubuntu/+source/chromium-browser UpgradeStatus: Upgraded to focal on 2022-07-09 (97 days ago) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/chromium-browser/+bug/1993021/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp