Problem saving files

[Billnormal]

I just downloaded paint.net and I've been editing this picture for a solid 4 hours now, with probably 8 more hours to go. During my progress I've saved "Character Sheet 1.1", "Character Sheet 1.2", & "Character Sheet 1.3". I open up a new picture b/c I need to work on something different for a minute to clear my head, & then I come back to open my original picture & I get a "The image file is not recognized and cannot be opened." The "Open recent" option shows a picture preview of my 3 saved files but they give the same error message. It seems that Paint.net didn't add a file extension when I was backing up my work. When I was saving the file all I remember was that it asked me what quality I wanted to save my picture & I selected 32bit. I'm thoroughly unhappy about losing all the time I've spent on this project because I've been trying to put time aside for it for several weeks now.

My first question is; HOW DOES A PICTURE EDITING PROGRAM SAVE A FILE THAT IT WON'T RECOGNIZE LATER???

And my second question is; how can I fix this? I've tried adding a file extension to no avail. I've tried opening it with gimp, windows paint (xp) & open office drawer. All with no luck. The attached file is the first of three your program created somehow... except that "Error You aren't permitted to upload this kind of file"

A timely reply would be infinately appreciated, as I need to have it completed by next week.

[jim100361]

My first question is; HOW DOES A PICTURE EDITING PROGRAM SAVE A FILE THAT IT WON'T RECOGNIZE LATER???

The short answer to this is that it doesn't unless the user intervened somehow.

And my second question is; how can I fix this? I've tried adding a file extension to no avail. I've tried opening it with gimp, windows paint (xp) & open office drawer. All with no luck. The attached file is the first of three your program created somehow... except that "Error You aren't permitted to upload this kind of file".

My guess is that Paint.net saved it in it's native format (.pdn) as it would normally try to do if the work has layers to it (EDIT: I'm making an assumption here because you stated, "saving the file all I remember was that it asked me what quality I wanted to save my picture" and did not indicate it asked you to flatten the image). You may have appended the file for example with the file extension ".jpg", but the data within the actual file (Paint.net's native filetype) does not match with the extension you've added, and so they can't open it.

Now that I've explained what is likely transpiring, try adding the ".pdn" file extension to your files and see if Paint.net opens it.

Edited May 24, 2012 by jim100361

[Billnormal]

Thank you Thank you Thank you Thank you Thank you Thank you Thank you Thank you Thank you Thank you Thank you Thank you Thank you Thank you Thank you Thank you Thank you Thank you Thank you Thank you.

Jim you are the man! and you win +1 internets & can has cheeseburger. You have my infinite gratitude of infinate gratitudes. Decendants far into the future will sing tales of ages long past and the man known as Jim who saved their ancestors from certain inconvenience. You truely have breathed life into Eek Mancooker the Evil Goblin Pestilience Bloodline Sorcerer (his current life goal is to eat one of the other party members who happens to be a pig given sentience & the shape of a man when he ate a magical fruit... I call him Bacon), Along with a half dozen more characters portrayed by myself.

Thanks Jim ^__^