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what about batch conversion? (press B)

original file:
(239x239 pixels)
http://en.irfanview-forum.de/vb/attachment.php?attachmentid=2706&d=1303964591


SHIFT+J (jpeg lossless operations) -> rotate clockwise - 90 degrees

result:...

You are very welcome. But don't mention it, it was the least I could do.
Hope to see you around here. Cheers.

See... fast and a "tidbit" more helpful.


Beforehand:

http://en.irfanview-forum.de/vb/attachment.php?attachmentid=2696&d=1303390744



Now: :D

trust me PenaPP, I've learned it the ward way, too.

It's really a pity, because most ideas for improvement and feature suggestions are dead on arrival due to the prevailing "no-features-for-IV"...

... which begs the question of the feature suggestion forum's sense and usefulness.

But given the above, maybe it's better this way.
After all, why should Irfan come here only to read that...

Nobody challenged the importance of your opinion. However one should understand what he or she votes on and your comment about "permanent proportional adjustment and necessary rounding" suggest that...

Whenever you see a comment like "feature can't be realized" just after a screenshot of a program depicting the implementation of precisely this very feature, one naturally has to wonder big time...

Yes. All chunks are "information chunks". All programs must be able to read+write the critical chunks (IHDR, PLTE, IDAT, IEND), otherwise they cannot save a valid png file.

Image editors/viewers...

Yes, some operations are not possible in indexed mode. But "no operations" is not true. Either way, you can go from indexed to RGB mode with *every* image in any decent image editor (in PS you just...

PS: Pay attention though, because saving to PNG with IrfanView can entail other problems, notably the following (I don't know if any or all of these have been solved in the meanwhile. Just to make...

can you post the two png files (original + your hex-edited one). I can look at it, maybe I find problem?
Until IrfanView grants the user access to PNG metadata (see...

thank you



with hdd space growing bigger and cheaper, lossless formats (including lossless image formats such as png) are gaining importance.

And for non-photographic image content PNG...

[EDIT: adding poll]


--> crosslink to similar discussion I just found: http://en.irfanview-forum.de/vb/showthread.php?368-Support-of-PNG-ancillary-information

with hdd space growing bigger and cheaper and - as a consequence - lossless formats (including lossless image formats such as png) gaining importance, this wish is now more relevant than ever

Hi folks.

Does anyone know a way of finding "100% exact image duplicates"

"exact image duplicates": means that each pixel in image A has the same colour as in image B

Note that images can...

Thank you for the flowers, Frank.

As far as the feasibility is concerned, there is no problem whatsoever. You can set ANY dpi value for ANY picture you like! This is especially obvious if the...

@jazzman:
perfect !! I will try to re-install IV, I never noticed this option (as I personally don't need it, as said above). I hope, I will then be able to find the corresponding registry entry,...

OK. Thanks again for your help and for having solved the problem earlier on.
I'm very happy that by using TotalCommander I don't have to deal with any of this.
Still I find it odd, that there...

Okay Mij, your script works. Many thanks! Problem solved.

I also tried to select the .vbs file via "open with..." but this doesn't work, unfortunately. So as far as "open with..." is concerned, is...

Thanks Mij, seems good in principle ...
I created a link to "iview32.exe /thumbs" and put it in the SendTo folder. This works. However I need to pass the file or folder as parameter.
Based on my...

Thanks Mij,
no the first suggestion is too difficult for my father. When he has Windows Explorer open, it's mostly in full screen mode and for him it's not intuitive to drag and drop a file to the...

Thank you Bhikkhu Pesala,
yes I know. Sorry, I forgot to mention that in my OP.
I know the command line switches and how to use them in TotalCommander, but not in Windows Explorer, as I mentioned...

Hi folks,
I am using an alternative file manager (Total Commander) so I never bothered with Windows Explorer, but now I need to help my father launching IV thumbnails directly from Windows Explorer...

okay, many thanks for your info. That sounds really promising, I'll look into this plugin very soon. Are you the author?
In case you used "stretching" in the plugin GUI, be advised that it's not a...