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BUM Converter

Convert BUM files on your own machine instead of an upload form. reaConverter processes everything locally, with no size limits.

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BUM Files
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Over 25 years of experience

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How to Convert .bum Files in Bulk

1. Install reaConverter

Download reliable BUM conversion software to convert multiple .bum files and folders in one go.
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Install reaConverter

2. Select BUM Files

Select BUMs from a folder or drag and drop them into reaConverter, then choose the desired output format.
reaConverter - Load BUM files

3. Start Conversion

Click Convert to start the bulk conversion of all selected BUM files. The process will begin right away.
reaConverter - Start BUM conversion

Step by step

See It in Action

For quick and effortless BUM file handling on your PC, reaConverter offers powerful conversion tools with batch processing. Best of all, it works entirely offline — ensuring your sensitive data never leaves your computer.

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Extra Tools

Do more with your files

Converting BUM files for use in a larger project? reaConverter offers many ways to process files, so you can customize them according to your requirements.

Our range of editing options includes auto-processing options such as auto-rotate, auto-crop, watermarking and more. Change Color Space, copy Metadata, set DPI, manage ICC Profile, control Bit Depth.

Conversion features
Image editing

User reviews

From those who tried it

Average User Rating:
Last updated on July 29, 2026
Your solution was buried deeper in search results than it should be. After struggling with unclear alternatives, I found your guides — finally, instructions that made sense for a first-time user like me. Excellent work!
Richard E. Miller
Richard E. Miller
Satisfied Customer
For cross-platform compatibility, JPEG remains the gold standard. reaConverter’s precision conversions ensure perfect results every time, whether for presentations, websites, or client deliverables.
Paul Baker
Paul Baker
Happy User
We use reaConverter in our department to handle image and document conversions for multiple teams. The Watch Folders function is brilliant — I configured different folders for different workflows, and now everything happens automatically in the background. No more manual conversions or missed files. Rock-solid performance!
James L.
James L.
IT Manager
reaConverter's automation tools have completely changed how I manage my projects. I often work with large batches of illustrations and used to spend hours converting and organizing them. Now, with Watch Folders, I just set the rules once and everything is handled automatically, exactly how I need it. This is pro-level automation made simple.
Chloe M.
Chloe M.
Freelance Illustrator
I deal with hundreds of images daily, and reaConverter has been a lifesaver. The Watch Folders feature lets me automate file conversions without lifting a finger. I set up a folder for incoming files and it automatically resizes, renames, and converts them into the formats I need. It's like having a personal assistant!
Sarah T.
Sarah T.
Graphic Designer
I'm really impressed with this software - it converts files between formats incredibly fast!
Lin Zhang
Lin Zhang
Happy User

Questions & Answers

BUM files: Frequently Asked Questions

What are BUM files?

The BUM file extension is associated with Poser — a graphics program specialized in modeling 3D human figures and used for creating animations and digital images. A BUM file can contain static or dynamic bump images.

Can reaConverter open BUM files?

reaConverter fully supports the BUM file format – open, edit, and export BUM files to any other popular file format with ease.

How do I change BUM to another format?

reaConverter is a user-friendly tool for converting BUM files. Once installed on your computer, it allows you to convert all your .bum files at once with just a few clicks. You can even convert BUM files directly from Windows Explorer using the right-click menu — fast and convenient.

Can I convert BUM online?

If you only want to convert a few BUM files, you are welcome to try our free online BUM converter.

How can I turn BUM files on my computer to another format?

The best way to convert BUM files on your PC is to get a quality piece of software, such as reaConverter. This software is extremely efficient in managing a wide range of batch files conversions, including conversion from BUM.

How can I automate BUM files conversion?

reaConverter supports all the essential automation features, such as right-click сonversion and Watch Folders, for the most efficient automated file conversion in any software of its kind.

Can I convert BUM files using scripts or the command-line interface?

reaConverter provides full access to all its features from the Windows command-line shell, including the command-line bum converter.

What else can I do with reaConverter?

Convert DICOM filesCrop photoChange format settingsCopy metadata (EXIF, IPTC)Convert PDF files

What formats can I convert a BUM file to?
bum → aibum → apngbum → avifbum → bmpbum → bpgbum → calbum → cg4bum → cgmbum → cinbum → citbum → dcmbum → dcxbum → ddsbum → dgnbum → disbum → drwbum → dwfbum → dwgbum → dxfbum → emfbum → epibum → epsbum → faxbum → fitsbum → flifbum → gbrbum → gifbum → glbbum → gltfbum → hpgbum → hrubum → icobum → iffbum → igesbum → igsbum → jp2bum → jpegbum → jpgbum → jxlbum → jxrbum → ktx2bum → mtvbum → pclbum → pctbum → pcxbum → pdfbum → pgmbum → picbum → pltbum → pngbum → ppmbum → prcbum → psbum → psdbum → qoibum → qrtbum → radbum → rlabum → sgibum → shpbum → stepbum → stlbum → stpbum → svgbum → svgzbum → tgabum → tifbum → tiffbum → u3dbum → webpbum → webpllbum → wmfbum → wmzbum → wpgbum → wrlbum → x3dbum → xbmbum → xpm

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Beyond BUM conversion

Convert .bum files in batches of any size, with editing and processing applied along the way. The same tool also handles 800+ other formats, including CAD, medical imaging, and GIS.

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Free trial · Windows 10/11 · v8.0.252 · Files never leave your computer

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