When exported to PDF, 1bpp B&W PNG images are turned into boxes filled
Steps to Reproduce:
1. Insert a 1bpp B&W PNG image into a Writer document.
2. Export the document to PDF.
3. View the resulting PDF in any PDF viewer.
In the exported PDF, the inserted image is displayed as a black box.
In the exported PDF, the inserted image should retain its original
User Profile Reset: Yes
I believe this issue was introduced by the fix for Bug #113875.
Exporting 1bpp B&W PNG images to PDF worked fine in version 126.96.36.199.
Converting the inserted PNG image to RGB mode using GIMP works around
User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:58.0) Gecko/20100101 Firefox/58.0
Created attachment 139518 [details]
Example problematic image
Created attachment 139519 [details]
Writer document with the example problematic image inserted
Created attachment 139520 [details]
Writer document exported to PDF using LibreOffice 188.8.131.52 (good)
Created attachment 139522 [details]
Writer document exported to PDF using LibreOffice 184.108.40.206 (bad)
Thanks for reporting this issue.
It seems like a dupe of bug 115297
*** This bug has been marked as a duplicate of bug 115297 ***