Bug 118105 - An image in PDF imported using LO_IMPORT_USE_PDFIUM has artifacts after breaking
Summary: An image in PDF imported using LO_IMPORT_USE_PDFIUM has artifacts after breaking
Status: NEW
Alias: None
Product: LibreOffice
Classification: Unclassified
Component: filters and storage (show other bugs)
(earliest affected)
Hardware: All All
: medium normal
Assignee: Not Assigned
Keywords: filter:pdf
Depends on:
Blocks: PDF-Import-Draw PDF-Insert
  Show dependency treegraph
Reported: 2018-06-11 02:28 UTC by Mike Kaganski
Modified: 2023-08-10 03:05 UTC (History)
6 users (show)

See Also:
Crash report or crash signature:

A PDF to test (332.47 KB, application/pdf)
2018-06-11 02:28 UTC, Mike Kaganski

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Description Mike Kaganski 2018-06-11 02:28:03 UTC
Created attachment 142643 [details]
A PDF to test

The attached PDF, when imported using PDFium (into Draw), and then broken, shows artifacts in the raster image at the right side.

0. Set LO_IMPORT_USE_PDFIUM variable and run cirrent master;
1. Import the PDF;
2. Right-click on the (absolutely correctly displayed) resulting whole-page picture, and choose "Break";
3. See that the right-side image now has a wrong black area in its top part (around "YOU editing..." and "ANNE editing..." flags).

Saving the image as PNG keeps the black area.
This is not reproducible when importing using poppler.

Tested with: Version: (x64)
Build ID: 2f0263c76cacdb04a914cf7c72ea949bd62282ce
CPU threads: 4; OS: Windows 10.0; UI render: default; 
Locale: ru-RU (ru_RU); Calc: CL
Comment 1 V Stuart Foote 2018-06-11 04:00:01 UTC
Confirmed the black layer on new break of pdfium based import (Insert -> Image) on Windows 10 Pro 64-bit en-US with 
Version: (x64)
Build ID: 812cae2f0b96c3d95d267b83727dd5a2114e611a
CPU threads: 8; OS: Windows 10.0; UI render: default; 
TinderBox: Win-x86_64@42, Branch:master, Time: 2018-06-10_07:50:04
Locale: en-US (en_US); Calc: group threaded

And with OpenGL rendering enabled, on break the fonts get strange replacements, but believe that to be bug 117936 related.
Comment 2 Ashod Nakashian 2018-06-12 13:59:43 UTC
Thanks for the report. Assigning to myself.

There are other known cases, as this feature (breaking) is not yet complete. It just supports all basic cases, but not all corner cases.
Comment 3 Xisco Faulí 2018-09-11 09:15:42 UTC
Dear Ashod Nakashian,
This bug has been in ASSIGNED status for more than 3 months without any
activity. Resetting it to NEW.
Please assigned it back to yourself if you're still working on this.
Comment 4 QA Administrators 2019-09-12 02:51:21 UTC Comment hidden (obsolete)
Comment 5 QA Administrators 2023-08-10 03:05:28 UTC
Dear Mike Kaganski,

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