Windows · Free download · General
jpegtran8d
jpegtran : A useful JPEG transcoding utility.
- Operating system
- Windows 10/11
- File size
- 148 KB
- License
- Freeware
- Last updated
- Apr 25, 2026
38 downloads·717 page views
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Overview
What is jpegtran?
jpegtran : A useful JPEG transcoding utility.
In depth
A closer look at jpegtran
jpegtran is a small library that allows you to transcode JPEG files. Currently supported scale factors are M/N with all M from 1 to 16, where N is the source DCT size, which is 8 for baseline JPEG. If the /N part is omitted, then M specifies the DCT scaled size to be applied on the given input. For baseline JPEG this is equivalent to M/8 scaling, since the source DCT size for baseline JPEG is 8. CAUTION: An implementation of the JPEG SmartScale extension is required for this feature. SmartScale enabled JPEG is not yet widely implemented, so many decoders will be unable to view a SmartScale extended JPEG file at all.
Verdict
Should you download jpegtran?
jpegtran runs on Windows 10/11 and is available under the Freeware license — the installer is 148 KB. We’ve catalogued it under General.
Verified clean. Every jpegtran build on SoftLookup is scanned for viruses, spyware, adware, trojans and backdoors. We re-test on every update.
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At a glance
jpegtran specifications
- Category
- General
- Publisher
- Guido Vollbeding
- Last updated
- Apr 25, 2026
- License
- Freeware
- Operating system
- Windows 10/11
- File size
- 148 KB
- Price
- Free
- Page views
- 717
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