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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是與PNG有密切相關，基於JPEG的文件格式。

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

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格式

JNG

說明 JPEG Network Graphics是與PNG有密切相關，基於JPEG的文件格式。
優點 JNG增強JFIF格式（普通的JPEG文件格式）的功能，支持透明性，連續兩種調色盤（8位和12位），以及其他有用的PNG性能，例如色彩校正，伽瑪校正等。JNG文件裡的透明度信息（alpha通道）可保存為無損PNG格式或有損JPEG格式。這樣，使用者會在受益於JPEG壓縮功效的同時能夠一起享受無損（PNG壓縮）透明度信息。

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

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

使用者證明:

"今天一定得轉換一些圖像。你的軟件真是救了我一命！謝了！"
Jason Hoffman，加利福尼亞州

"我每天都拍攝RAW圖像。我非常喜歡你的軟件，因為它很省時。"
Jim Richardson，印第安納州

"我一直都在注意圖像轉換器。我發覺你們的軟件乾淨，簡單，而且非常棒！"
Brandon Keegan，紐約州

保證滿意:

簡單又專業的照片轉換以及處理過程
攝影師（業余和專業），設計工作室，建築師，大機構（NASA，IBM，克萊斯勒，大學醫院）所使用的產品。
完全無風險. 購買後，您將獲得一個30天退款保證，絕不多問。

JNG 圖像優化

怎麼打開JNG？ 如何處理JNG？ 如何把JNG縮小？ 如何減少JNG的文件大小？ 如何自動重命名 JNG？ 如何把 JNG 整理成子文件夾？ 如何重新壓縮JNG？ 如何用 JNG 創建一個PDF相冊呢？

JNG 圖像色彩處理

如何把 JNG 轉換成黑白圖像？ 如何把 JNG 轉換成棕褐色圖像？ 如何調整 JNG 的亮度？ 如何調整 JNG 的對比度？ 如何調整 JNG 的伽瑪？ 如何反轉 JNG 的顏色？ 如何提高 JNG 的色彩？ 如何增強 JNG 的對比度？

JNG 圖像處理

如何在 JNG 上添加水印？ How to create animated GIF slideshows from JNG? How to create pencil/ink drawings from JNG? 如何銳化 JNG ？ 如何模糊 JNG ？ 如何重新聚焦 JNG ？ 如何從 JNG 去噪熱像素？ 如何裁切 JNG？ 如何旋轉 JNG ？ 如何翻轉 JNG ？

JNG 圖像標注

如何改變 JNG 的DPI分辨率？ 如何修改 JNG 的IPTC/XMP創建和修改日期？ 如何修改 JNG 的IPTC/XMP說明？ 如何修改 JNG 的IPTC/XMP位置？ 如何修改 JNG 的IPTC/XMP法律信息？ 如何修改 JNG 的IPTC/XMP工作流程（轉狂，緊迫性）？ 如何修改 JNG 的版權資料？

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 →