IIMG Converter

Fast IIMG conversion for Windows. reaConverter processes large batches reliably, without crashes or timeouts.

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reaConverter
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IIMG Files
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How to Convert .iimg Files in Bulk

1. Install reaConverter

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

2. Select IIMG Files

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

3. Start Conversion

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

Convert IIMG on your PC

For quick and effortless IIMG 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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Do more with your files

Converting IIMG 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

Average User Rating:
Last updated on May 28, 2026
"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
"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
"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
"Finally an app that actually opens my weird files! Saves me from format frustration daily."
Kyle Brooks
Kyle Brooks
Happy User
"I was skeptical at first, but reaConverter exceeded my expectations. The interface is intuitive, and the advanced settings let me tweak outputs perfectly. Plus, the customer support is fantastic!"
Sarah Lane
Sarah Lane
Satisfied Customer
"I run a small design agency, and reaConverter has saved me countless hours. The batch processing is lightning-fast, and the ability to convert hundreds of files into different formats at once is a game-changer. Highly recommend!"
Mark T.
Mark T.
Satisfied Customer

IIMG files: Frequently Asked Questions

What are IIMG files?

IIMG is a type of file also known as an "Interleaf image". Such files most likely contain images that were created and/or edited using software programs created by Interleaf, an American IT developer which produced graphics editing tools for the publishing industry throughout the 1980s and 1990s. The brand was acquired by Broadvision in 2000. The IIMG format is currently considered rare and obsolete.

Can reaConverter open IIMG files?

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

How do I change IIMG to another format?

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

Can I convert IIMG online?

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

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

The best way to convert IIMG 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 IIMG.

How can I automate IIMG 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 IIMG 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 iimg converter.

What else can I do with reaConverter?

Convert CAD formatsSet picture bit depthConvert GIS filesCopy EXIF dataConvert RAW formats

What formats can I convert a IIMG file to?
ai  apng  avif  bmp  bpg  cal  cg4  cgm  cin  cit  dcm  dcx  dds  dgn  dis  drw  dwf  dwg  dxf  emf  epi  eps  fax  fits  flif  gbr  gif  glb  gltf  hpg  hru  ico  iff  iges  igs  jp2  jpeg  jpg  jxl  jxr  mif  mtv  pcl  pct  pcx  pdf  pgm  pic  plt  png  ppm  prc  ps  psd  qoi  qrt  rad  rla  sgi  shp  step  stl  stp  svg  svgz  tga  tif  tiff  u3d  webp  webpll  wmf  wmz  wpg  wrl  x3d  xbm  xpm 

Beyond IIMG conversion

Convert .iimg files in batches of any size, with editing and processing applied along the way. The same tool also handles 700+ other formats, including CAD, medical imaging, and GIS.
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Free trial · Windows 10/11 · 64-bit · v8.0.240 · Files never leave your computer
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