BMP to PDF Converter

Convert legacy BMP scans and screenshots into compact PDFs. Free in your browser — no sign-up, no watermarks.

Drop your BMP files here

or click to browse — Select multiple files for batch conversion

bmp

⚡ Instant — conversion starts the moment you add files. No sign-up, no watermarks. Why FileHugger

🔍 How your file is processed

Runs: In your browser on this page
Engine: Canvas decode + our own PDF writer
Max input: 512 MB per file
Your file: Processed in this browser tab — the file is not uploaded. Converted results are kept in this browser's local storage for up to two hours so their matching download page can show them; expired results are removed on the next site visit. Nothing is stored on our servers.
Good to know: Images are embedded as JPEG pages at 90% quality.

Full security & file-privacy details →

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How to convert BMP to PDF

Click Choose files (or drag & drop) and select one or more BMP files. You can also paste an image from your clipboard.
Choose the page size and whether all images go into one PDF or one PDF each.
Press Convert to PDF. Each file is converted with a live progress indicator.
Open the download page to save your files individually or grab everything as a single ZIP.

Why convert BMP to PDF?

Old scanners and industrial software output BMP files that are huge and awkward to share. Converting them to PDF compresses the images and produces a document format everyone can open and print.

What this tool preserves — and what it changes

✓ Preserved

The full bitmap: every pixel of the scan goes onto the page, fitted without cropping or stretching
Scan order — when combining multiple BMPs into one PDF, pages follow your file list exactly

↺ Changed

Uncompressed BMP data becomes JPEG at 90% inside the PDF — typical scans and screenshots end up a small fraction of the BMP’s size
That JPEG step is lossy: high-contrast line art from old 1-bit scans can pick up faint compression artifacts around edges

Known limits & edge cases

Decoding relies on the browser’s own BMP reader — a variant it cannot parse fails with a clear “could not be decoded” message instead of a broken page
Large-format scans are capped at 16384 px per side and 100 megapixels total — resize a poster-size scan first if it exceeds that

Engine: Canvas decode + our own PDF writer. These statements describe the engine as shipped on 2026-10-02 — behaviour changes are recorded in the changelog.

About the formats

What is a BMP file?

BMP is an uncompressed raster format created by Microsoft for Windows. Every pixel is stored raw, so files are large but completely lossless and extremely simple to read, which is why old software, scanners, embedded devices and some industrial tools still produce or require BMP files. Converting BMP to JPG or PNG typically shrinks the file by 90% or more.

What is a PDF file?

PDF is the universal document format: it locks layout, fonts and images so a file looks identical on every device and printer. Scans, invoices, forms, e-books and reports all travel as PDF. Because a PDF is a container rather than an image, turning its pages into JPG or PNG pictures — or bundling pictures into a PDF — are among the most common file tasks there are.

BMP vs PDF at a glance

	BMP	PDF
Type	Raster image	Document
Compression	None (uncompressed)	Mixed (per object)
Transparency	No	—
Animation	No	—
Typical use	Legacy Windows software, scanners, devices	Documents, scans, invoices, forms

Old scans, modern envelope

Folders of BMPs are usually inheritances — output from an old scanner, exports from legacy machines, archives from software long retired. The images are fine; the format is just heavy and awkward to share. Converting them to PDF wraps those scans in the one container every office, portal and inbox accepts, and multi-page mode reassembles a scanned document back into a single readable file.

There’s a size dividend, too: BMPs are uncompressed, and the PDF stores their content far more sensibly, so archives often shrink dramatically in the conversion. Batch the whole folder at once, keep page order by adding files in sequence, and the result is a set of documents that behave like documents — searchable by filename, printable, attachable — instead of a directory museum piece.

Frequently asked questions

Is this BMP to PDF converter free?

Yes — completely free, with no sign-up, no watermarks and no daily quota. Processing happens in this browser, so the practical limit is the memory available on your device.

Can I convert multiple BMP files at once?

Yes. Select or drop as many files as you like — each one is converted in sequence with its own progress status, and you can download the results individually or all together as a ZIP archive.

Can I control the page order in the PDF?

Pages follow the order of the file list — files are added in the order you select or drop them, and you can remove and re-add files to adjust. Choose “One PDF with all images” to produce a single multi-page document.