Python Wand convert PDF to PNG disable transparent (alpha_channel)

Question

I\'m trying to convert a PDF to PNG - this all works fine, however, the output image is still transparent even when I believe I have disabled it:

with Image(         


        

Answer 1

I also had some PDFs to convert to PNG. This worked for me and seems simpler than compositing images, as shown above.:

all_pages = Image(blob=self.pdf)        # PDF will have several pages.
single_image = all_pages.sequence[0]    # Just work on first page
with Image(single_image) as i:
    i.format = 'png'
    i.background_color = Color('white') # Set white background.
    i.alpha_channel = 'remove'          # Remove transparency and replace with bg.

Reference: wand.image