PDF to BMP
Convert PDF pages into BMP bitmap images.
or drag and drop · max 50 MB
PDF to BMP converts pages from a PDF document into Windows Bitmap image files directly in your browser. BMP is a legacy but still widely used raster format — required by certain industrial software, older document management systems, Windows-native printing workflows, and archival pipelines that predate modern image formats. If a downstream system you work with requires BMP input, converting your PDF pages to BMP is the straightforward solution. iSavePDF's PDF to BMP tool uses pdfjs-dist to render each PDF page as a raster image and saves it as a BMP file, all within your browser. Your file is never transmitted to any server. The tool is free with no account required and no watermark on the output.
Step by step
How to pdf to bmp on iSavePDF
Open PDF to BMP on iSavePDF
Go to isavepdf.com/pdf-to-bmp in any modern browser — Chrome, Edge, Firefox, Safari, or Brave, on desktop or mobile. No installation or login is needed. The tool runs entirely in your browser tab.
Upload your PDF
Drag your PDF file onto the upload zone or click to browse. The tool accepts a single PDF of up to 50 MB. Once loaded, the page count is displayed so you can confirm the right document is selected.
Select pages to convert
Choose whether to convert all pages or specific pages by number. For long documents where you only need a few pages as BMP files, selecting specific pages avoids generating unnecessary output and keeps the process fast.
Click Convert
Hit Convert. pdfjs-dist renders each selected PDF page onto an HTML canvas, which is then encoded as a BMP file. This happens entirely in your browser with no server involvement. A single standard page converts in under two seconds; a large batch takes proportionally longer.
Download your BMP files
When conversion is complete, download the individual BMP files or a ZIP containing all of them. To verify no file was uploaded during conversion, open browser DevTools, go to the Network tab, and re-run the conversion — you'll see no outbound requests carrying your PDF content.
How it works
How PDF to BMP works
Upload your PDF
Drop the PDF you want to convert into the upload zone.
Pick a quality preset
Standard for typical use, High or Very High for sharper text at the cost of larger files.
Download BMPs as a ZIP
Each page becomes one 24-bit BMP, generated in your browser and bundled into a ZIP.
When to use it
Common use cases
Feeding PDF content into legacy industrial or specialist software
Certain CAD applications, industrial control systems, document processing pipelines, and older enterprise software only accept BMP as an image input format. If the source document you need to process is a PDF — a technical drawing, a standards document, a supplier specification — converting the relevant pages to BMP first allows you to bring that content into the system. Because these documents are often proprietary or commercially sensitive, local conversion with no server upload is the appropriate handling.
Creating uncompressed image archives of PDF pages
Some archival and compliance workflows require storing document images in uncompressed formats to ensure bit-for-bit fidelity over time. BMP's uncompressed storage means what you save is exactly what pdfjs-dist rendered, with no lossy compression applied. This is a niche requirement, but it does arise in regulated industries where compressed formats might be questioned in an audit.
Windows-native image workflows
BMP integrates natively with Windows applications — it can be opened and manipulated in Paint, dropped into older Office applications, used in Windows Fax and Scan, and processed by Windows Imaging Component without any additional codec installation. If you're working in a Windows environment and need to get PDF page content into this ecosystem, BMP is the lowest-friction choice.
Extracting PDF pages for image editing
If you need to edit a PDF page as an image in a raster editor, converting it to BMP first gives you an uncompressed source that won't suffer from the rounding errors that JPEG compression introduces when you save and re-save. Edit the BMP in your image editor, then convert the result back to PDF using iSavePDF's image-to-PDF tools.
Why iSavePDF
The privacy-first way to pdf to bmp
PDF to BMP conversion typically involves sending your PDF to a remote server where it's rendered server-side and the BMP files are returned to your browser. Even with trustworthy providers, this means your document content crosses a network and sits on hardware outside your control during processing. For PDFs that contain proprietary designs, internal business documents, personal data, or regulated information, that exposure can be a compliance issue.
iSavePDF renders PDF pages to BMP entirely in your browser using pdfjs-dist — the same PDF rendering engine that powers Firefox's built-in PDF viewer. The PDF stays on your device from start to finish. Your browser reads it, renders it, encodes it as BMP, and delivers the file to your downloads folder. No upload step exists. The tool is funded by display ads and has no business model that involves storing or processing user file content.
Tips & limits
Tips for the best results
BMP output files will be large
BMP is uncompressed, so even a simple A4 page rendered at screen resolution can produce a multi-megabyte file. If you need to share or store the output, consider whether a compressed format like PNG or JPG would serve the downstream use case better. If BMP is specifically required, that's what the tool produces — just be prepared for large file sizes.
Use PNG if you don't specifically need BMP
For most use cases where you want an image of a PDF page, PNG produces a better result than BMP: smaller files, lossless quality, transparency support, and universal compatibility. BMP should be chosen specifically when a downstream system requires it. Otherwise PDF to PNG is the better option.
Resolution is determined by the PDF's rendering quality
pdfjs-dist renders the PDF at a set resolution. Vector content (text, crisp diagrams) renders at any size without quality loss. Scanned or rasterised content in the PDF is limited by its original scan resolution — the BMP output will reflect whatever quality was embedded in the PDF source.
Pair with other tools for pre-processing
If your PDF is too large or complex, use Compress PDF first to reduce the file size before converting pages. If you only need specific pages, use Extract PDF Pages first to pull out just those pages into a smaller PDF, then convert.
FAQ
Frequently asked questions
- Yes — free with no account, no watermark, and no daily limit. All 45 iSavePDF tools are funded by display advertising.