Some thing happened after I change a .pdn file into Jpg.

[Kutti]

That's the crash log

 

 

 

System.FormatException: file is not a valid paint.net document
   at PaintDotNet.Document.FromStream(Stream stream) in D:\src\pdn\src\Data\Document.cs:line 1333
   at PaintDotNet.FileType.Load(Stream input) in D:\src\pdn\src\Data\FileType.cs:line 496
   at PaintDotNet.Functional.Func.Eval[T1,TRet](Func`2 f, T1 arg1) in D:\src\pdn\src\Base\Functional\Func.cs:line 158

Edited August 22, 2018 by Kutti

[BoltBait]

This is probably what happened:

 

You opened your PDN drawing.

You hit File > Save As...

You changed the name into a JPG file and hit the OK button.

 

Now you have a problem.

 

The problem here is that you didn't change the "Save as type" to match the filename.

 

 

So, basically, you have a filename ending in .JPG that has a file in it in the PDN format.

[MJW]

Probably he easiest solution is to:

 

Select the File>Open menu in PDN.

Navigate to the folder containing the file.

Right click on the file, and rename it to the .pdn extension.

 

You should then be able to open it. You can then save it as a JPG file by changing both the name and the file type