Which image formats does this accept?

BMP first, plus JPG, JPEG, and PNG. Drop one BMP or a batch — each image becomes one page in the output PDF. The bitmap is flattened against white during conversion so the resulting PDF prints clean.

Why convert BMP to PDF?

BMP is an uncompressed Windows bitmap format that produces large files and is awkward to share or upload. Converting to PDF makes the image portable, compresses it, and fits document workflows and portals that expect PDF rather than a raw bitmap.

Will the PDF be smaller than the BMP?

Usually yes. BMP stores every pixel uncompressed, so a single bitmap can be several megabytes. The PDF encodes the image with compression, so the output is typically much smaller than the source BMP without a visible quality drop.

Can I reorder pages before converting?

Yes. After uploading, each BMP appears as a tile. Drag tiles to rearrange them, or use the arrow buttons on each tile. The PDF respects the final order you set.

Are my BMP images uploaded anywhere?

No. The conversion runs entirely in your browser using pdf-lib and the canvas API — the browser decodes the bitmap locally. Your files never leave your device and nothing is stored on a server.

What page size does the PDF use?

Auto matches each PDF page to the bitmap's natural dimensions, so there are no white borders. Pick A4 or Letter if you need a standard paper size for printing — the image is centered and scaled to fit.

BMP to PDF — Free, No Upload, Convert Bitmap Images to PDF

Related Tools

JPG to PDF

Convert JPG and JPEG images to PDF — batch supported.

PNG to PDF

Convert PNG images to PDF — sibling tool.

GIF to PDF

Convert GIF images to PDF — sibling tool.

Want to edit the PDF after converting? Free vs paid PDF editors — key differences.