How to automatically lossless rotate pictures in WinXP (keyword is automatic)

> > You must set all three Irfanview 4.00 freeware options below ...

> #1: JPEG Save Quality = 100%
> #2: Set Rename Options -> Name Pattern = $E274 $E36868(%Y%m%d %H%M%S)

Hi Bert,

I solved the problem!

After more and more tests, I first realized that the batch rotate by EXIF
orientation tag steps above were lossy.

Luckily, while I was testing the operation, I then found a totally
different way to do the desired lossless automatic rotation of the original
JPEG photographs!

Here is the tutorial, for others to benefit, as always!

0. Open any single photo in a batch of photos, in Irfanview 4.00 freeware.
1. File->Thumbnails, Options->Select all,
2. File->JPEG Lossless Operations->Lossless transformation with selected
files
3. (o)Auto rotate (according to EXIF orientation, if available)

This automagically performs a lossless batch rotation of all the JPEG files
based on their EXIF orientation tag!

In keystroke steps, it's simply the following keypress sequence:
t, control + a, shift + j, enter

Those four quick strokes will automatically losslessly rotate all the JPEG
photographs in the current directory (if they have an EXIF orientation tag
other than "Top left")!

Thanks to you, this hint will save me, and countless others, tremendous
time and effort organizing our JPEG photographs for viewing by others!

After serious thinking Donna wrote :

> Hi Bert,
>
> I solved the problem!

> Thanks to you, this hint will save me, and countless others, tremendous
> time and effort organizing our JPEG photographs for viewing by others!

Nice work Donna & Bert, your'e right, the tutorial is in the system now
& googlers will pick it up.

donnaohl26@yahoo.com (Donna) wrote in
news:tS9Zj.138$lH.19@flpi146.ffdc.sbc.com:

> Hi Bert,
>
> I solved the problem!
> ...
> Thanks to you, this hint will save me, and countless others,
> tremendous time and effort organizing our JPEG photographs for
> viewing by others!

Ha! Don't thank me; I happened to know about this one setting in
IrfanView, but it's pretty obvious you've done all the actual work.

Your willingness to post your step-by-step discovery of problems and
their ultimate solutions will be especially useful to folks who come
across this thread later.

All too often, all that people find is a recipe for performing a
function with no explanation of why the various steps are there.

--
Bert Hyman | St. Paul, MN | bert@iphouse.com