PDF to BMP Converter

What happens when you convert PDF to BMP

• Each page of the PDF becomes its own BMP file, rendered at 150 dpi by default. Choose 300 dpi for print-quality text.

How to convert PDF to BMP online

1. Press "Choose PDF files" and select one or more files, or drag them onto the box. You can add files of any size your device can hold in memory.
2. Adjust the settings if you need to. The output is lossless, so there is no quality setting to worry about.
3. Press "Convert to BMP". Images convert in a second or two each.
4. Save each BMP with its download button. Close the tab and every trace of the files is gone from memory.

Why convert PDF to BMP?

PDF files usually come from documents, forms, invoices and print-ready files. People convert them to BMP because BMP is read by almost every Windows program, embedded display and old piece of software.

In short, PDF is good at what it was made for, and BMP is the more practical choice when the file has to open, upload or print somewhere else. PDF opens in every browser's built-in viewer, while BMP opens in browsers and every Windows image tool.

How to convert PDF to BMP on Windows, Mac, iPhone and Android

On Windows

Open this page in Chrome, Edge or Firefox, drag your PDF files in from File Explorer, and press Convert. Each BMP is saved to your Downloads folder. Paint can also re-save an image as BMP with Save as, provided Windows can open the PDF in the first place.

On a Mac

Safari, Chrome and Firefox all work. Drag the PDF files from Finder onto the drop zone and the BMP files land in Downloads.

On iPhone and iPad

Open the page in Safari and tap Choose PDF files. You can pick from Photos or from the Files app. The converted BMP appears in Files, in the Downloads folder; to put it in your photo library, open it there, tap Share and choose Save Image.

On Android

Open the page in Chrome, tap Choose PDF files and pick them from Files or your gallery. The BMP is saved to the Download folder, where any file manager can find it.

Best settings for PDF to BMP

A 24-bit BMP stores every pixel uncompressed, three bytes each, so size is simply width times height times three: a 12 megapixel photo becomes about 36 MB. Use the Maximum width setting if the program that needs the BMP does not need full resolution.

PDF vs BMP: the differences

About PDF and BMP files

What is a PDF file?

A PDF fixes the layout of every page so it looks the same on any device. Converting a PDF to an image renders each page to pixels; converting an image to PDF wraps it as a page.

What is a BMP file?

BMP usually stores pixels with no compression at all, so a 12 megapixel photo is about 36 MB. That size is the price of being readable by almost any program ever written for Windows.

PDF to BMP not working? Common problems

• Colours look slightly different. Browsers convert images to the standard sRGB colour space when they decode them, so wide-gamut and CMYK images can shift a little.
• A phone photo comes out upright even though it looked sideways elsewhere. That is correct: the rotation stored in the photo is applied during conversion, so the BMP is always the right way up.
• The file is bigger than expected. A PDF is a short list of drawing instructions, while the BMP stores every pixel, so the output is normally larger and grows with the width you choose.

Convert PDF to BMP from the command line

If you work in a terminal, ImageMagick converts PDF to BMP in one line:

magick input.pdf output.bmp

To convert every PDF in a folder at once, use magick mogrify -format bmp *.pdf. ImageMagick needs Ghostscript installed to read PDF files. The converter on this page does the same job without installing anything.