You have a PDF logo on transparent background. Convert to JPG and the transparency becomes white. You want the empty space to stay empty.
What's actually going wrong
JPG doesn't support transparency. Transparent areas in source become solid (usually white) when converted to JPG. PNG supports an alpha channel that preserves transparency.
For logos, icons, and graphics with transparent backgrounds, PNG is the only image format that keeps the transparency.
The quick fix
Convert PDF to PNG with Flint. Transparent areas in the PDF stay transparent in the PNG. Solid backgrounds stay solid.
The output PNG can be placed on any background colour without visible edges or boxes around the content.
If that didn't work
Note that not every PDF has transparency where you expect. PDFs created from Word or PowerPoint often have white backgrounds by default — not transparent. The 'transparency' in the original might be opaque white that looks transparent on white viewers.
For PDFs with white backgrounds you want to make transparent, use an image editor after PNG conversion — most tools support 'make transparent' by colour.
Prevent it next time
Source design files with explicit transparency (no background layer). Export to PDF preserving alpha. Then PDF-to-PNG maintains the transparency end-to-end.
FAQ
Why is my PNG showing white where I expected transparent?
The source PDF likely has a white background layer rather than transparency. Convert preserves what's there. Use an image editor to remove the white.
Can JPG be transparent?
No. JPG doesn't support transparency. Use PNG, GIF, or WebP for transparent images.
Does transparency increase file size?
PNGs with transparency are larger than JPGs of the same dimensions because PNG is lossless. For photos PNG is overkill; for graphics with transparency PNG is the right choice.
Can I convert multiple PDF pages to transparent PNGs?
Yes — Flint converts each page to its own PNG with transparency preserved per-page.
Need transparency? Convert PDF to PNG in Flint and the empty space stays empty.