How to Convert PDF to BMP
Updated July 13, 2026
Most tools happily take a JPG or PNG, but some Windows software and older legacy systems specifically want BMP — an uncompressed bitmap format most modern tools have moved past.
Steps
- Open PDF to BMP and drop your PDF above (or click to select).
- Choose a resolution (150 DPI is a good default).
- Click Convert, then download the images — all pages at once as a .zip.
What makes BMP different
BMP stores every pixel with no compression at all, which means the files are exact but large — often many times the size of an equivalent JPG or PNG. If the images just need to be shared or viewed, one of those formats is a better choice; BMP is worth reaching for specifically when a target application requires it.
Picking a resolution
150 DPI covers most general uses well. Go to 300 DPI if the output needs to be print-quality, or down to 72 DPI for small, screen-only images. Because BMP doesn’t compress, raising the DPI has an outsized effect on file size compared to JPG or PNG at the same setting.
Notes
Rendering runs in a background worker, so even a long PDF won’t freeze the tab, and everything happens locally — nothing is uploaded. Password-protected PDFs need to be unlocked first. For smaller files meant for sharing, PDF to JPG is usually the better fit; to shrink the original PDF itself, use Compress PDF.