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BMP to PDF

BMP files from Paint, old scanners and industrial software are huge and hard to share. As a PDF the same images are a fraction of the size and open on any device.

By Miikka · CalcBrew · Updated

Runs in your browser — files never leave your device.

Drop BMP files here

or click to browse · paste from clipboard · up to 100 MB each

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Why convert BMP to PDF

BMP stores every pixel uncompressed — a full-screen screenshot is 6 MB, a scanned A4 page 25 MB. Packing them into a PDF compresses each page and puts them in a format that email, phones and document systems all accept.

The bitmaps are decoded in your browser and embedded as JPEG (photos and screenshots) so the resulting PDF is typically 10–20 times smaller than the BMPs while looking identical on screen and in print.

How to convert BMP to PDF

  1. Drop the BMP files onto the page.
  2. Choose page size and orientation.
  3. Click Convert and download the PDF.

About the formats

BMP · Windows bitmap · .bmp

An uncompressed Windows image format from the 1990s: simple and lossless, but files are enormous.

  • A 12-megapixel BMP is about 36 MB; the same photo as JPG is 2–4 MB.
  • BMP usually has no transparency and no metadata such as camera settings.
  • Still produced by some scanners, screenshot tools and legacy software.

PDF · Portable Document Format · .pdf

The fixed-layout document standard: looks the same on every device and printer, which is why forms, invoices, contracts and reports are shared as PDF.

  • A PDF can contain vector text, embedded fonts, images, form fields, annotations and digital signatures.
  • Scanned PDFs are just pictures of pages; they need OCR before the text can be searched or copied.
  • PDF is an open ISO standard (ISO 32000) since 2008.

Related conversions

Image to PDFPopularOn-deviceAny image formats, mixed, into one PDF.BMP to JPGOn-deviceHuge BMP files to compact JPG.PNG to PDFOn-deviceTurn PNG screenshots and graphics into a PDF.Merge PDFPopularOn-deviceCombine several PDFs into one, in the order you choose.Split PDFPopularOn-deviceCut a PDF into separate pages or page ranges.Rotate PDFOn-deviceTurn pages the right way up and save the PDF.

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Cite this calculator
APACalcBrew. (2026). BMP to PDF. https://calcbrew.com/bmp-to-pdf
MLA“BMP to PDF.” CalcBrew, 2026, calcbrew.com/bmp-to-pdf.

Link to https://calcbrew.com/bmp-to-pdf. Results are estimates; cite the underlying formula or data source for academic work.