pdfviz

Turn BMP images into a PDF

or drop them here
Choose at least one JPG or PNG image first.

BMP to PDF turns one or more BMP images into a single checked PDF without uploading them. The browser decodes common bitmap formats into lossless pixels and preserves their dimensions. Choose A4 or US Letter, or match each page to its own image, and the finished PDF is reopened and verified before download.

How to convert BMP to PDF in your browser

  1. Choose BMP images

    Pick one or more .bmp files, or drag them onto the page. Each bitmap is decoded in this tab, so nothing leaves your device.

  2. Put them in order

    Use the arrow buttons to set the page order. Each BMP image becomes one PDF page, and the order you see is the order you get in the file.

  3. Choose the page fit

    Match each page to its image for bitmaps of varying shapes, or use A4 or US Letter for a document that prints on standard paper. Add no margin, a narrow margin, or a standard margin.

  4. Read the receipt, then download

    The completed PDF is opened again inside the browser. Its page count, page sizes, and embedded image dimensions must all match before the download button appears.

How does BMP to PDF keep lossless pixels?

Each BMP is decoded in memory and written into the PDF as a lossless PNG image. This keeps its pixel width and height, and keeps transparency when the bitmap carries a usable alpha channel. It does not keep the BMP byte stream, and it does not add OCR or selectable text.

BMP stores raw pixels with no compression, so a handful of bitmaps can be larger than the document they came from. Each one is written into the PDF as a lossless image, which usually shrinks the file without changing a pixel. A bitmap carries no orientation tag either, so pages appear in the order you set here and nothing is rotated behind your back.

The verifier reopens the completed PDF and checks the page count, every page size, and the pixel width and height of each embedded image before the download appears. If the result is still too large to email, Compress PDF takes the size down, and Size breakdown shows which pages carry the weight.

When should I convert BMP to PDF here?

This BMP to PDF converter is free with no account needed. The bitmap is decoded and written into the PDF inside this browser tab, so no file content reaches a server: usage data events carry only action names, counts, sizes and durations. Files are held in memory on your device, so very large sets depend on what your browser can hold.

Archiving legacy Windows bitmaps. Older applications and scanner drivers still produce BMP files. Converting them to PDF gives you a file that opens in any PDF reader without a dedicated viewer.

Sharing technical diagrams. Engineering and scientific tools often export BMP. A PDF page is easier to email, print, and annotate than a raw bitmap that most modern software no longer favors.

Submitting images to a portal that accepts PDF only. When a portal accepts PDF but not BMP, convert your files here and download one PDF that meets the requirement.

Reducing the size of uncompressed bitmaps. Because the PDF stores decoded pixels with lossless PNG compression, the output is often much smaller than the source BMP files, with no change to a single pixel.

To place these pages next to documents you already have, use Merge PDF. To reorder or drop pages afterwards, use Organize pages. If the files are photos or scans rather than bitmaps, Images to PDF takes several formats in one job.

How do the ranking converters gate size?

The ranking pages for this query mostly compete on caps and page options. FreeConvert's converter page names a 1 GB maximum file size; PDFCandy's BMP page offers page sizes of original, A4 or US Letter with none, small or large margins - the same three choices this tool gives you - and gates larger per-task sizes behind its paid plans. Those are their pages' claims, not measurements made here, and every one of them processes your bitmaps on its servers after upload.

Here there is no account, no queue and no plan-gated size: the bitmaps are decoded in this tab and held in memory. One coded guardrail exists - a single image over 80 megapixels is refused as too large to decode safely in the tab - and beyond that, very large sets depend on what your browser can hold rather than on a plan.

The page-size and margin choices match the familiar set - match each page to its image, or A4 or US Letter with no, narrow or standard margins - because for printing on standard paper those are the options that matter.

BMP to PDF frequently asked questions

Are my BMP files uploaded to a server?
No. The BMP decoder, PDF writer, and all output checks run in this browser tab. No file content leaves your device; usage data events carry only action names, counts, sizes and durations.
Which BMP files does it support?
It reads common Windows and OS/2 bitmap files with 1, 4, 8, 16, 24, or 32 bits per pixel. It also reads standard RLE and bitfield compression.
Does it change image quality?
No pixels are resampled. Each BMP is decoded once and stored as a lossless PNG image inside the PDF. Its pixel width and height are kept.
Can I mix portrait and landscape images in one PDF?
Yes. Fixed paper sizes turn automatically for landscape images. Match image gives every page the shape of its source image.
Why can the PDF be much smaller than the BMP files?
Many BMP files store pixels with little or no compression. The PDF stores those decoded pixels with lossless PNG compression, which often takes fewer bytes.
Does it make text selectable?
No. BMP contains pixels, not selectable characters. This conversion does not run OCR.
Is there a file size or page limit?
No account is required and there is no queue. Files are processed in this tab and held in memory, so very large sets depend on what your browser and device can handle. The one hard refusal is a single image over 80 megapixels, which the decoder rejects as too large to handle safely in the tab.
What does the BMP to PDF verification check cover?
It reopens the completed PDF and checks the page count, every page size, and the pixel width and height of each embedded image. A failed result is not offered for download.

The other pdfviz tools

They all run in a browser tab like this one. Each reads its own output back and checks it before offering the download, and none of them needs an account.

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