Saving PDF when mode is '1' saves as a pdf 1000's of inches wide, 1px tall. Same image as greyscale or color has no such problem

[aseelye]

What did you do?

Created an image with mode='1', color=1. Altered appropriately, then image.save('filename.pdf'), leads to a large file size (2.1mb when greyscale is 0.9mb) that has it's dimensions all out of whack.

What did you expect to happen?

Expected a 1-bit pdf of the appropriate size.

What actually happened?

Large file size (2.1mb when greyscale is 0.9mb) that has it's dimensions all out of whack

What are your OS, Python and Pillow versions?

• OS: MacOS 10.14. Confirmed on AWS Linux running Python 3.6 as well.
• Python: 3.73
• Pillow: 6.0.0

[radarhere]

This looks like a duplicate of #3267, which was resolved by #3827. If testing with Pillow master does not fix the problem for you, then please provide a code example to demonstrate the issue.

[radarhere]

The file size issue is covered by #1775