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.pdn

PDN file: what it is and how to convert it to PNG or JPG

A .pdn file is a Paint.NET project: the layered working file of the free Windows editor.

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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 PDN 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.

Nothing but Paint.NET and a few converters open it. Paint.NET itself exports one file at a time with Save As. Contenta Converter flattens the layers and converts a whole folder of .pdn files to PNG, JPG or TIFF in one batch, with no Paint.NET required.

How to open a .PDN file on Windows

  1. Paint.NET (free). The program that made the file. Open it and use Save As to export PNG or JPG, one file at a time.
  2. Photopea (free, in the browser). Opens .pdn files with their layers and exports PNG, JPG or PSD.
  3. Contenta Converter, for folders. Drop a folder of .pdn files and get flattened PNG, JPG or TIFF pictures in one batch, resized or renamed if you like, without Paint.NET installed.

Before you convert PDN files

  1. What changes in the conversion
    The layers. A PNG or JPG is one flat picture, so layer names, order, opacity and blend modes are merged into the final image and cannot be separated again. Transparent areas survive in PNG and TIFF and turn opaque in JPG. The .pdn file is not changed, so you can always reopen it in Paint.NET to edit.
  2. What Contenta Converter does with PDN
    Contenta Converter reads .pdn files directly and composites the visible layers with their opacity and all 14 Paint.NET blend modes, then writes PNG, JPG, TIFF, WEBP or PDF through its normal pipeline, so you can resize, watermark and rename in the same batch. Hidden layers are left out, as in Paint.NET's own export. A layer with a blend mode the decoder does not know is composited as Normal and the file gets a warning, so you can check it in Paint.NET.

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.
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格式

PDN

公司

Paint.NET
說明 A .pdn file is a Paint.NET project: the layered working file of the free Windows image editor Paint.NET. It keeps every layer with its name, opacity, blend mode and visibility, so the picture can be edited again later. Only Paint.NET itself and a few tools read it; browsers, Windows Photos and other editors do not.
優點 Keeps all layers editable with their blend modes and opacity. Lossless. Small and fast to save in Paint.NET.
缺點 Opens only in Paint.NET and a handful of converters. Cannot be shared, printed or uploaded until it is flattened to PNG or JPG. Paint.NET runs on Windows only.

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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:

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PDN 圖像優化

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

PDN 圖像色彩處理

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

PDN 圖像處理

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

PDN 圖像標注

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

Frequently Asked Questions about PDN

How do I open a PDN file without Paint.NET?

Photopea opens .pdn files in the browser, and Contenta Converter converts them to PNG or JPG on Windows. Windows Photos, Photoshop and GIMP do not read the format. If you only need the picture, converting it is the quickest way.

Does converting a PDN keep the layers?

No. PNG, JPG and TIFF hold one flat picture, so the layers are merged. Transparency is kept in PNG and TIFF. To keep editable layers, export from Paint.NET or Photopea to PSD instead.

Can I convert many PDN files at once?

Yes. Drop the folder into Contenta Converter, choose PNG or JPG and click Start Converting. Every .pdn is flattened and written in one batch, and you can resize or rename them in the same pass.

Need more than PDN conversion? Browse supported cameras that produce PDN files below, or:

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