IMG → TIFF · Windows

Convert IMG to TIFF

Online converters slow with large IMG files? reaConverter converts to TIFF on your desktop, with no upload and no queue.

Online converters too slow for your IMG files? reaConverter works locally and handles unlimited batches. All processing runs locally on your PC, so your files stay private and secure.

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IMG to TIFF
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4.8

Converting files since 2001

Runs offline — nothing uploaded

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How to Convert Multiple .img Files to .tiff?

1. Download and Install reaConverter

Download reaConverter and install it in seconds. The setup is straightforward — no complex configuration, no extra software required.

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Install reaConverter

2. Load your IMG files

Add IMG files to reaConverter. One file or a thousand, the process is the same. Everything runs locally on your machine.

You can drag-and-drop files, browse to a folder, or add entire directory trees including subfolders.

Load your IMG files into reaConverter

3. Select TIFF as output format

Select TIFF from the output format list and set your destination folder. You can also adjust quality and compression settings.

Select TIFF as output format

4. Start IMG to TIFF conversion

Click the Convert button to start. reaConverter will process all your files with the settings you selected.

Start Conversion

When finished, your new .tiff files will be waiting in the destination folder.

Step by step

How It Works

reaConverter offers the fastest, simplest solution for converting your IMG files into TIFF without GIS software - all files processed on your PC for maximum privacy and speed.

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Map Data Workflow

Turn GIS data into something anyone can open

Not everyone who needs to see IMG data has GIS software. reaConverter renders it to TIFF for a report, an email or a slide, and handles a whole folder in one run.

  • Render every file in a folder to TIFF with the same size and settings
  • Set DPI and output dimensions before the run, not afterwards
  • Stamp a text watermark, such as a project name or a date, on every image
  • Pick up new data automatically with Watch Folders, or script the job from the command line

Everything runs on your PC, which matters for cadastral, utility and client data that should not pass through an upload form.

GIS data conversion

User reviews

What people say after the first batch

Average User Rating:4.8
Last updated on September 28, 2026
For quick TIFF to JPG conversions without installations, this online tool outperformed 5+ competitors I tested. The streamlined interface delivered ready-to-use JPEGs in under 30 seconds per batch.
Paul Thomas
Paul Thomas
Happy Online User
As a book scanner, I deal with TIFF files daily – they're huge. reaConverter compresses them to PDF or JPEG without losing any detail. I've saved terabytes of storage and still have archive‑quality images. This software paid for itself in storage costs alone.
Edward N.
Edward N.
Digitization Specialist
My scanner saves everything as massive TIFF files, which are impossible to email. reaConverter lets me batch-convert them to searchable PDFs with tiny file sizes. My clients actually get their documents now!
Ryan Park
Ryan Park
Freelance Archivist
I work in medical imaging, and we receive TIFFs from various sources. reaConverter converts them to DICOM‑compatible formats while preserving all pixel data. It's HIPAA‑friendly because it works offline – no data leaves our network. Essential for our lab.
Dr. Harold Kim
Dr. Harold Kim
Radiology IT
I needed to convert TIFF to multi‑page PDF for an archive project. reaConverter handled it effortlessly – 2,000 pages in one batch. The output PDF was searchable (thanks to OCR) and had the same resolution as the originals. Absolutely brilliant.
Patricia O'Brien
Patricia O'Brien
Satisfied Customer
I'm a graphic designer, and I often receive TIFF files from photographers. reaConverter converts them to editable PSDs with layers intact (where possible). It even keeps the colour profiles. This has streamlined my collaboration with clients tremendously.
Benjamin F.
Benjamin F.
Creative Director

FAQ

IMG to TIFF Conversion

What are IMG files?

IMG is a frequently used extension for image files and can be associated with a variety of programs, including the computer-aided design program Autocad CAD-Camera, GEM Paint (an image handling program developed by Digital Research) or Img Software Set. The IMG format can also be associated with Microtek Eyestar web cameras, Sharp GPB image processing boards, image processing software developed by Adex Technologies or Vivid Ray-Tracer. reaConverter covers all these uses of the IMG format and several more (associated with Datacopy, Starbase or Imaging Technology), helping you convert this format to a wide selection of others.

What are TIFF files?

TIFF (Tagged Image File Format) is a file format for storing images, popular among graphic artists, the publishing industry, and both amateur and professional photographers in general.

Can reaConverter convert IMG to TIFF?

Yes! reaConverter instantly converts .img to .tiff with perfect quality preservation. With its batch processing feature, you can convert multiple files at once in just a few clicks. You can even convert IMG files directly from Windows Explorer using the right-click menu — fast and convenient.

What is reaConverter used for?

reaConverter is a Windows converter for 800+ formats, GIS data among them. For IMG to TIFF it replaces the usual detour through QGIS, ArcGIS or ogr2ogr: add the files, pick the output format, and the whole batch converts offline. Surveyors, planners and engineering teams use it to pass data between GIS, CAD and everyday document formats.

Why choose offline conversion with reaConverter?

reaConverter is a software program that is used for offline files conversion. Your proprietary documents never leave your computer – essential for architects, engineers, healthcare and government contractors handling classified projects. Meets GDPR, HIPAA, CCPA, and corporate security policies by ensuring files never cross borders or third-party systems.

Can I convert IMG to TIFF online?

If you only need to convert a few IMG files to TIFF format, feel free to try our free online free online IMG to TIFF converter — perfect for small batches with no installation needed!

How can I turn IMG files into TIFF on my computer?

The best way to change IMGs to TIFFs on your PC is to install 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 IMG to TIFF.

How can I automate IMG to TIFF files conversion?

reaConverter supports all the most useful automation features such as right-click сonversion and Watch Folders for the most efficient automated files conversion in any software of this type.

Is there a way to convert IMG files to TIFF using the command prompt?

reaConverter provides full access to all its features via Windows command line, including a high-performance command-line img to tiff converter for batch processing.

What else can I do with reaConverter?

Convert PDF filesAdd watermark on imageChange format settingsCopy metadata (EXIF, IPTC)Convert vector files

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Beyond format conversion

Batch conversion, editing, and processing across 800+ formats, from RAW and HEIC to DICOM, DWG, and PDF. Everything runs locally, with no cloud and no upload limits.

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