Issue 126933 - Transparent png images makes font thicker on pdf-export
Summary: Transparent png images makes font thicker on pdf-export
Status: CLOSED IRREPRODUCIBLE
Alias: None
Product: Writer
Classification: Application
Component: save-export (show other issues)
Version: 4.1.2
Hardware: PC Windows 7
: P5 (lowest) Normal (vote)
Target Milestone: ---
Assignee: AOO issues mailing list
QA Contact: Theodore Matula
URL:
Keywords: needmoreinfo
Depends on:
Blocks:
 
Reported: 2016-04-20 19:00 UTC by Chris
Modified: 2016-10-25 14:00 UTC (History)
3 users (show)

See Also:
Issue Type: DEFECT
Latest Confirmation in: ---
Developer Difficulty: ---

Attachments
Transparent png image (16.85 KB, image/png)
2016-04-20 19:00 UTC, Chris 		no flags Details
PDF Without a transparent image (180.74 KB, application/pdf)
2016-04-23 02:44 UTC, Theodore Matula 		no flags Details
Test File 1 (image at end) (197.29 KB, application/pdf)
2016-04-23 02:45 UTC, Theodore Matula 		no flags Details
Test File 2 (image at beginning) (196.92 KB, application/pdf)
2016-04-23 02:45 UTC, Theodore Matula 		no flags Details
Test File 3 (image in middle) (196.90 KB, application/pdf)
2016-04-23 02:46 UTC, Theodore Matula 		no flags Details
Add an attachment (proposed patch, testcase, etc.)

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Description Chris 2016-04-20 19:00:43 UTC 
Created attachment 85460 [details]
Transparent png image

Transparent png image (attachment) makes font thicker on pdf-export. I removed the image and pdf-export was correct. Document was 110 pages long and written with 'DejaVu serif' font (size 11).
Comment 1 oooforum (fr) 2016-04-21 09:55:34 UTC 
Could you provide more details about this problem:
- attach a sample document with this image
- attach the pdf exported
Comment 2 Theodore Matula 2016-04-23 02:40:05 UTC 
Version: 4.1.2

Specs:
Operating system: Windows 10
Processor: Intel i7 2600k
Graphics Card: Nvidia GTX 770
Monitor: Asus 24" monitor

I was not able to Replicate the bug. Here are the tests I did to try and replicate the issue. I first made a "control" file that the test files would be compared to. After every test file was made, I compared it to the control file.

Making the control file:
1. Download the picture attached to this report
2. Open OpenOffice.
3. Write or copy/paste a paragraph of filler text.
4. Copy and paste the paragraph until the file is 193 pages long.
5. Click File->Export as PDF. Click Export on the new window that pops up.

Test File 1:
1. Make a copy of the control file
2. Open the copied file in Open Office
3. On the top bar, Click Insert->Picture->From File, and select the picture downloaded from this report
4. Insert the picture AFTER all the text
5. Click File->Export as PDF. Click Export on the new window that pops up.

Result: Font was not thicker in test file 1

Test 2:
As Test 1 , but insert the picture BEFORE all of the text

Result: Font was not thicker in test file 2

Test 3:
As Test 1 , but insert the picture in between any two paragraphs or lines of text

Result: Font was not thicker in test file 3
Comment 3 Theodore Matula 2016-04-23 02:44:41 UTC 
Created attachment 85476 [details]
PDF Without a transparent image
Comment 4 Theodore Matula 2016-04-23 02:45:25 UTC 
Created attachment 85477 [details]
Test File 1 (image at end)
Comment 5 Theodore Matula 2016-04-23 02:45:49 UTC 
Created attachment 85478 [details]
Test File 2 (image at beginning)
Comment 6 Theodore Matula 2016-04-23 02:46:16 UTC 
Created attachment 85479 [details]
Test File 3 (image in middle)
Comment 7 oooforum (fr) 2016-10-25 13:22:35 UTC 
According with test in comment 2: closed