Solved Command line convert extremely slow

[Pipanni]

Hi

I'm trying to use Irfanview in command line mode to convert a few files from PDN (Paint.net) to JPG, but I must be doing something wrong, because the conversion takes hours for just a single file, while the same operation in the normal GUI mode only takes a few seconds or less.

Here's the command I'm using:

"C:\Program Files (x86)\iview453_x64\i_view64.exe" c:\temp\01.pdn /convert=c:\temp\01.jpg

Can someone please help?

Cheers,
Pipanni

[Bhikkhu Pesala]

IrfanView 4-bit should be installed in C:\Program Files\ though I doubt if that is the cause of your issues. How big are the PDN files (in pixels)?

Upgrade to the latest version 4.62 with the appropriate plugins. Both 64-bit and 32-bit versions can be installed and used simultaneously.

[Pipanni]

Thanks for your help. Unfortunately now I get another error: Error! Can't load: 'c:\temp\01.pdn'

The PDN I'm using as a test has 900px by 900px and 7 layers. It takes less than a second to convert to JPG if I just open Irfanview and do it by hand.

Things I tried (and got the same "error: can't load" result or the previous "many hours to convert one file" problem):
- starting the CMD as admin
- using irfanview 32 bit
- installing all the plugins

My last command was this:
"C:\Program Files (x86)\IrfanView\i_view32.exe" c:\temp\01.pdn /convert=c:\temp\01.jpg

...and this is the one that outputs the " Error! Can't load: 'c:\temp\01.pdn' " screen.

What else can I try? I would really really like to build an automated batch script to help me with image conversions, but right now manual seems to be the only way it works

Cheers,
Pipanni

[Bhikkhu Pesala]

IrfanView does not support layers, so it would have to merge the seven layers on loading the file. That may explain the delay. If you convert from the program UI, then the file is already loaded and the layers are merged.

Please zip and attach the file to the forum for others to test. C:\TEMP\ may be case-sensitive?

[Pipanni]

I haven't loaded the file in the UI, I just used the batch conversion shortcut from the menu and everything worked fine and super fast.

I now have a bigger problem: I just unistalled Irfanview 64 and reinstalled it again (along with all plugins) and now the "Error: can't load" is also on the UI

What should I do?

By the way here's the zipped PDN in attachment.

[Bhikkhu Pesala]

Enable the IMPDN.DLL plugin from the Help, Installed plugins submenu. Only IrfanView 32-bit has the required menu. IrfanView 64-bit does not support Paintnet files.

Your file loads in 172 milliseconds.

[Bhikkhu Pesala]

"C:\Program Files (x86)\IrfanView\i_view32.exe" c:\temp\01.pdn /convert=c:\temp\01.jpg worked for me.

[Pipanni]

Ahah, I also arrived at this solution by searching the internet for an answer ?
Yep, it's also working for me, thanks a lot!

By the way, here is the finished comic, if you want to see it: http://www.pipanni.com/comics/rapunzel

Cheers,
Pipanni