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JNG Image Conversion: Batch Convert, Resize & Organize

Contenta Converter PREMIUM lets you open, convert, and batch process JNG files into modern formats like JPG, PNG, TIFF, PDF, and more.

Download the free trial: every file converts, keep 10 clean

Contenta Converter results screen showing 32 converted photos and a before and after preview
The results screen of Contenta Converter: 32 photos converted in 47 seconds, with a before and after preview.
  1. Add your JNG filesDrop in single files or a whole folder.
  2. Pick output formatJPG, PNG, TIFF, PDF and more.
  3. Click ConvertEvery file converted in one pass.

The same photo, five outputs

Photo of a stage set with a bed, a small table and a checked sofaDSC_0001.NEF · 3900×2613
  • PNG.png1.9 s
    16.1 MB
  • AVIF.avif2.2 s
    2.02 MB
  • JPG.jpg1.7 s
    1.69 MB
  • WebP.webp1.7 s
    1.32 MB
  • JPEG XL.jxl1.7 s
    1.12 MB
One Nikon D60 RAW file converted to five formats, at quality 90 where the format has a quality setting. PNG is lossless, so it is the largest. Seconds are the median of three runs. Measured with the Contenta Converter 9.0.35 command line on an AMD Ryzen 9 3900X, 2026-09-30.

JPEG Network Graphics je JPEG-založené grafické formátu souboru, který je úzce spjat s PNG.

Optimize file size, keep important metadata, and prepare images for web, print, or long-term archiving in just a few clicks.

✓ 100,000+ users worldwide · 100+ formats supported · Free trial, no time limit

Formát

JNG

Popis JPEG Network Graphics je JPEG-založené grafické formátu souboru, který je úzce spjat s PNG.
Výhody JNG rozšiřuje schopnosti o formát JFIF (JPEG obvyklý formát souboru), který na podporu transparentnosti, dvě po sobě jdoucí barevné proudy (jeden 8 bitový a dalších 12 bitů), PNG a další užitečné funkce jako korekci barev, gamma korekce, vložené barevné profily, PNG styl metadata, kontrolní atd. transparentnost informací uvnitř JNG obrázek (jako alfa kanál), mohou být uloženy buď v bezztrátové PNG formátu, nebo v ztrátový formát JPEG. Takto mohou uživatelé využít sílu JPEG komprese při současném zachování bezeztrátový (PNG komprimované) transparentnost informací.

Ready to convert your JNG files? Download the free trial.

Download the free trial: every file converts, keep 10 clean

Testimonials:

"V potřeba převést tyto obrázky dnes byl reliéf najít software. Díky!"
Jason Hoffman, CA

"I RAWS střílet každý den, a já rád vaše převodník. To opravdu šetří čas."
Jim Richardson, Indianapolis

"Musím říct, že jsem hledal na fotografii převodníky a Vy je čisté, jednoduché a strašně dobré."
Brandon Keegan, NY

Satisfaction Guaranteed:

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JNG image organization

Jak otevřít JNG? Jak proces JNG? Jak srazit JNG? Jak snížit JNG? Jak přejmenovat automaticky JNG? Jak organizovat JNG v sub-složky? Jak recompress JNG? Jak vytvořit PDF fotoalbum z JNG?

JNG image color processing

Jak převést z JNG na černou a bílou? Jak převést z JNG do sépie? How to adjust the brightness JNG? How to adjust the contrast JNG? How to adjust the gamma JNG? How to invert the colors of JNG? How to boost colors from JNG? How to boost the contrast from JNG?

JNG image processing

Jak přidat vodoznak na JNG? How to create animated GIF slideshows from JNG? How to create pencil/ink drawings from JNG? Jak se k zaostření JNG? How to blur JNG? How to refocus JNG? How to denoise hot pixels from JNG? How to crop JNG? How to rotate JNG? How to flip JNG?

JNG image annotation

How to change the resolution in dpi of JNG? How to modify the IPTC/XMP creation and modification dates of JNG? How to modify the IPTC/XMP description of JNG? How to modify the IPTC/XMP location of JNG? How to modify the IPTC/XMP legal information of JNG? How to edit the IPTC/XMP workflow (status and urgency) of JNG? How to edit the IPTC/XMP copyright of JNG?

Frequently Asked Questions about JNG

What is a JNG image file?

A JNG file is a type of image format used in various tools and workflows. With Contenta Converter PREMIUM you can convert JNG files to more common formats like JPG, PNG, or PDF without losing control over quality.

How do I convert JNG images to JPG?

Install Contenta Converter PREMIUM, add your JNG files to the input list, choose JPG as the output format, and click Convert. The software will process all selected files in a single batch.

Can I batch-process many JNG images at once?

Yes. Contenta Converter PREMIUM is built for batch processing and can handle hundreds or thousands of JNG images in one operation, using all available CPU cores.

When should I convert JNG images to another format?

Convert JNG 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 JNG conversion? Browse supported cameras that produce JNG files below, or:

See all 100+ formats and features →