python-pillow
Converting MCIDAS to PDF results in empty file
What did you do?
Converted MCIDAS .ara-file to PDF
What did you expect to happen?
A PDF would be created with content similar to the source
What actually happened?
An empty PDF was created
What versions of Pillow and Python are you using?
Pillow 5.2.0 and Python 2.7.15
ara = Image.open("Tests/images/cmx3g8_wv_1998.260_0745_mcidas.ara")
rgb_ara = ara.convert('RGB')
rgb_ara.save('output.pdf')
If I run your code, the PDF is a white image 1,800 by 400.
However, this is also what I get if I show the image instead -
from PIL import Image
ara = Image.open("cmx3g8_wv_1998.260_0745_mcidas.ara")
ara.show()
I presume that you think the image is not just a while rectangle? What program are you using to view the original file?
I viewed it by converting it to a PNG and then opening the resulting file in Apple's Preview app
from PIL import Image
ara = Image.open("cmx3g8_wv_1998.260_0745_mcidas.ara")
ara.save("output.png")
It turns out that this situation is more complicated. See https://github.com/python-pillow/Pillow/pull/3838#discussion_r292114051