BMP to PDF Converter

Convert BMP to PDF Online

Turn a Windows bitmap (BMP) into a PDF you can email, print, or drop into a report. BMP stores raw, uncompressed pixels — even a single screenshot can run to several megabytes — so wrapping it in a PDF makes the file far easier to share and gives it a fixed paper size that prints the same on any device. Upload one bitmap or several at once and combine them into a single multi-page PDF.

How to Convert BMP to PDF

1. Upload Your BMP File: Drag and drop your .bmp files or click "+ Add Files". Add several at once if you want them in one document. Files are uploaded over an encrypted connection and deleted automatically a few hours after conversion.
2. Choose Single PDF or Individual PDFs: Under Combine?, pick Single PDF to merge every bitmap into one multi-page document (page order follows upload order), or Individual PDFs to get a separate PDF per image.
3. Set Page Layout (Optional): Adjust Paper size (A4, Letter, Legal, A3, Tabloid, or Original to match the image), Page layout (Portrait or Landscape), Margin, Image placement (Contained fits the whole image; Cover fills the page), and Image Compression quality to control output size.
4. Convert and Download: Click "Convert" and download your PDF. No sign-up, no watermark, never shared or made public.

BMP vs PDF — What Changes in the Conversion

A PDF made from a BMP holds the picture as an embedded raster image. The conversion does not run OCR, so it does not turn pixels into editable, selectable text — if you need searchable text, run the PDF through a separate OCR step afterward.

Frequently Asked Questions

Will the PDF have selectable or searchable text?

No. A BMP is a grid of pixels with no text layer, so the PDF embeds it as an image. Any words visible in the bitmap are part of the picture, not real characters — you cannot highlight or search them. To get a text layer, convert to PDF first, then run the result through an OCR tool.

Can I combine several BMP files into one PDF?

Yes. Upload all your bitmaps and choose Single PDF under Combine?. Each image becomes its own page in upload order, producing one multi-page document. Choose Individual PDFs instead if you want a separate file per image.

Why is my BMP so large, and will the PDF be smaller?

BMP stores every pixel uncompressed, so a 24-bit bitmap uses roughly 3 bytes per pixel plus a small header — a 1920×1080 image is about 6 MB of raw data regardless of how simple the picture looks. When it's placed in a PDF, the image is re-encoded with compression (JPEG at the quality you set, or lossless Flate), so the output is usually much smaller than the original BMP. In our testing, lowering the Image Compression quality from the default 75 toward 50 shrinks the PDF noticeably with little visible change on screenshots and line art.

Will I lose image quality?

It depends on the Image Compression setting. At quality 75 (the default) the loss is minimal and hard to notice. For photographs you can keep it high; for screenshots, scans, or diagrams you can lower it to save space, since flat color areas and text edges tolerate compression well. Keep quality at 100 if you need the closest possible match to the source.

Does it preserve BMP transparency?

BMP can carry an alpha channel (introduced with the Windows 95 header), and the Image Transparency option lets you keep it Unchanged or have it Removed. PDF pages have a white background by default, so transparent areas appear white unless you choose to handle them otherwise.

How do I control the paper size and orientation?

Use Paper size to pick A4, Letter, Legal, A3, Tabloid, or Original (the page matches the image's own dimensions), and Page layout to switch between Portrait and Landscape. Image placement decides whether the bitmap is Contained (scaled to fit fully inside the page with margins) or Cover (scaled to fill the page, cropping the overflow). For more image-to-document tools, see Convert JPG to PDF or Merge Image to PDF.