Bug 169621 - Tables with rows and columns filled with background color show blank artifacts in the exported PDF file
Summary: Tables with rows and columns filled with background color show blank artifact...
Status: RESOLVED DUPLICATE of bug 93941
Alias: None
Product: LibreOffice
Classification: Unclassified
Component: Writer (show other bugs)
Version:
(earliest affected)
25.8.3.2 release
Hardware: All All
: medium normal
Assignee: Not Assigned
URL:
Whiteboard:
Keywords:
Depends on:
Blocks:
 
Reported: 2025-11-23 01:35 UTC by hmslima1992
Modified: 2025-11-30 18:18 UTC (History)
1 user (show)

See Also:
Crash report or crash signature:


Attachments
Fresh ODT file that I created as an example (27.47 KB, application/vnd.oasis.opendocument.text)
2025-11-23 01:36 UTC, hmslima1992
Details
PDF file created from the file "Tables.odt" (243.99 KB, application/pdf)
2025-11-23 01:37 UTC, hmslima1992
Details

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Description hmslima1992 2025-11-23 01:35:34 UTC
Description:
Some tables, whose rows or columns have a background color, show blank lines in the places where pass the lines/borders of these rows and columns. These blank lines appear in the exported PDF file.

I hope I was successful in uploading the ODT and its PDF file, so you can understand what I mean by "blank artifacts". If you can see the PDF file, look at the Table 3, Table 4, Table 6, Table 9, and Table 10. For example, in the Table 3, you can see a white line between the fifth and sixth columns; the Table 6 is the worst case, I don't even need to explain.

It's a bit random, these artifacts may appear in some tables in some exports, but after some PDF exports, the blank artifacts disappear in these tables, but start appearing in other tables. The visual bugs may change of place in different PDF exports, but they are always appearing somewhere in the PDF file!

This problem is not new, it happened in previous versions, in both Windows and Linux (Flatpak or installed in the traditional way).


----------------------

Version: 25.8.3.2 (X86_64) / LibreOffice Community
Build ID: 8ca8d55c161d602844f5428fa4b58097424e324e
CPU threads: 4; OS: Linux 6.12; UI render: default; VCL: gtk3
Locale: pt-BR (pt_BR.UTF-8); UI: pt-BR
Flatpak
Calc: threaded

Steps to Reproduce:
1. Create multiple tables whose rows and columns are filled with background color (I've used light gray 4). If you make only a few tables or make all of them in the same way, you may miss the bug. Make tables in different configurations, like I did in the attached files.
2. Export the file to PDF

Actual Results:
The generated PDF may show the blank artifacts

Expected Results:
The tables in the exported PDF file shouldn't have these blank artifacts


Reproducible: Always


User Profile Reset: Yes

Additional Info:
I think I already informed everything in the description and title.
Comment 1 hmslima1992 2025-11-23 01:36:40 UTC
Created attachment 204214 [details]
Fresh ODT file that I created as an example
Comment 2 hmslima1992 2025-11-23 01:37:27 UTC
Created attachment 204215 [details]
PDF file created from the file "Tables.odt"
Comment 3 hmslima1992 2025-11-23 01:53:34 UTC
The lines are evident in the PDF viewer Okular, while in other viewers like Evince or even Firefox they are not so "highlighted", but on the other hand you can see the lines separating almost all cells.
Comment 4 rram 2025-11-23 02:54:25 UTC
Hello  hmslima1992@gmail.com,

Thank you for reporting the bug. I can confirm that this bug is present in master and alpha. When zoomed in at 305% I was able to see a faint white line on "d10 TABLE 4" between rows 6 and 7. I was able to see this wen exporting with the latest stable build and in the latest alpha build.

Version: 25.8.3.2 (X86_64)
Build ID: 8ca8d55c161d602844f5428fa4b58097424e324e
CPU threads: 8; OS: Windows 10 X86_64 (build 19045); UI render: Skia/Vulkan; VCL: win
Locale: en-US (en_US); UI: en-US
Calc: CL threaded

Version: 26.2.0.0.alpha0+ (X86_64) / LibreOffice Community
Build ID: 620(Build:0)
CPU threads: 8; OS: Windows 10 X86_64 (build 19045); UI render: Skia/Vulkan; VCL: win
Locale: en-US (en_US); UI: en-US
Calc: CL threaded
Comment 5 rram 2025-11-23 02:58:42 UTC
Hello hmslima1992@gmail.com,

I forgot to mention in my previous comment, in case it is relevant to the issue, that I opened the PDF in Google Chrome when testing whether the issue was resolved.​
Comment 6 Buovjaga 2025-11-30 18:18:13 UTC

*** This bug has been marked as a duplicate of bug 93941 ***