IFF Image Conversion: Batch Convert, Resize & Organize
IFF (Interchange File Format) is the 1985 Amiga image format developed by Electronic Arts for Commodore. Its ILBM (interleaved bitmap) variant was the native format for Deluxe Paint and became the de facto standard for Amiga graphics through the 1990s. Files can store HAM (Hold-and-Modify) mode images, brushes, palettes, and animation chunks.
Contenta Converter PREMIUM lets you open, convert, and batch process IFF files into modern formats like JPG, PNG, TIFF, PDF, and more. Optimize file size, keep important metadata, and prepare images for web, print, or long-term archiving in just a few clicks.
How it works
How to convert IFF to J2K?
Answer
You can use our software Contenta Converter PREMIUM to convert thousands of IFF to J2K. Everything in one go and in just a few easy steps.Format |
IFF |
J2K |
Company |
Commodore |
Joint Photographic Experts Group |
| Description | IFF (Interchange File Format) is the 1985 Amiga image format developed by Electronic Arts for Commodore. Its ILBM (interleaved bitmap) variant was the native format for Deluxe Paint and became the de facto standard for Amiga graphics through the 1990s. Files can store HAM (Hold-and-Modify) mode images, brushes, palettes, and animation chunks. | JP2 and J2K are two container formats for the JPEG 2000 image standard, both storing the same wavelet-compressed image data. JP2 adds metadata boxes (EXIF, XMP, ICC color profiles); J2K is just the raw codestream. JPEG 2000 was designed in 2000 as the successor to JPEG, with better compression, lossless mode, and features for medical imaging and archival. |
| Benefits | Chunked container design predates and inspired modern formats — IFF's idea was borrowed into AIFF (Apple audio) and RIFF (Microsoft multimedia). Supports HAM6/HAM8 modes that let Amiga hardware display 4,096 colors from a 32-color palette, which was the killer feature for 1980s art. | Both lossy and lossless compression in the same format. Progressive decoding — a low-resolution preview appears before the full image finishes loading. Region-of-interest coding lets you specify areas that should stay at higher quality. Used in medical imaging (DICOM), film archiving (DCP digital cinema packages), and geospatial data. |
| Drawbacks | Amiga-era only. Modern viewers rarely open IFF directly, and you lose all the HAM and palette tricks when converting to a standard format like PNG — the pixel data maps, but the Amiga hardware chroma effects were never part of the file. Useful today mostly for retro collectors and digital archivists. | Slow to encode and decode compared to standard JPEG — roughly 5–10× slower. Still not universally supported by web browsers (Safari added support late; Firefox needs a plugin). Outside specialized industries, very little software opens JP2/J2K without conversion. |
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Frequently Asked Questions about IFF
What is a IFF image file?
A IFF file is a type of image format used in various tools and workflows. With Contenta Converter PREMIUM you can convert IFF files to more common formats like JPG, PNG, or PDF without losing control over quality.
How do I convert IFF images to J2K?
Install Contenta Converter PREMIUM, add your IFF files to the input list, choose J2K as the output format, and click Convert. The software will process all selected files in a single batch.
Can I batch-process many IFF images at once?
Yes. Contenta Converter PREMIUM is built for batch processing and can handle hundreds or thousands of IFF images in one operation, using all available CPU cores.
When should I convert IFF images to another format?
Convert IFF images when you need better compatibility with web browsers, design tools, or printing services. Exporting to formats like JPG, PNG, or TIFF from Contenta Converter PREMIUM makes sharing and archiving much easier.
Need more than IFF conversion? Browse supported cameras that produce IFF files below, or: