Nota Bene

It is not a mistake that in all Calendars on this site Monday is held to be the first day of the week, by default. It is for a few reasons. ISO 8601 defines Monday as the first day of the week, making Sunday the seventh. Moreover, in most countries in the world Monday refers to the first day of the week. Finally, Saturday and Sunday are commonly called the weekend. As Sunday is weekEND, it cannot be the beginning of the week, logically. Also, the week cannot have two ends and no beginning like a piece of string, because it is a quantum of time. Any quantum of time always has its beginning and its end.

However, if it is a tradition in your country to hold another day to be the first day of the week, you can use «Settings window» on this web-site to create a kind of yearly or monthly calendar that you want.

Software & Utilities

JPEG Lossless Rotator

Have you ever thought that when you rotate your JPEG photos you lose their quality?

All people usually make photos with different shot orientaton, and some photos need to be rotated. When you rotate a JPEG photo, most image editors decode the photo, rotate the bitmap and then reencode it back to JPEG. This process slightly decreases the final image quality. Unlike other tools, the JPEG Lossless Rotator does not recode your photo but performs a special lossless block transformation. As a result, the rotated photo has exactly the same quality as the original.

Features:

• Shell integration (this allows you to rotate your JPEG photos by a right-click on the file)
• Automatic rotation
• Batch rotation
• EXIF-data display
• Multilingual interface: Chinese (simpl), Czech, Danish, Dutch, English, French, German, Greek, Hungarian, Italian, Polish, Portuguese, Russian, Slovak, Spanish and Swedish.

Latest version: 5.0. New features: batch rotation, delete function, include subfolders option, multilingual interface, also some bugs were fixed.
Latest minor update: August 12, 2007.
Supported platforms: Windows 98, ME, NT, 2000, XP, 2003, Vista.
Installation package.
License: freeware.

Download JPEG Lossless Rotator 5.0 (EXE), size 1.80 MB

Download JPEG Lossless Rotator 5.0 (ZIP), size 1.78 MB

To rotate images quickly, use your keyboard:
Arrow keys — to choose an image,
Enter — to view the full size image,
R — to rotate the image right,
L — to rotate the image left,
H — to rotate the image 180°,
Ctrl+Del — to delete the image,
E — to show the EXIF-data.

Users' Questions

I plan to publish a note about your software in a magazine/ include your software into cover CD/ publish on a web-site/ etc. I'd like to ask you a permission.

You may give this software to your friends, burn it onto CD/DVD-ROMs or other media, include it onto cover CDs/DVDs, publish notes in magazines and upload it to software archives. Any web links to this site are appreciated. Also I would be glad to see any notes about my software, so please send me a scan of the magazine's page or a URL to the web-site.

Is the rotation by JPEG Lossless Rotator really lossless?

It is absolutely lossless for any JPEG file, if its width and height (number of pixels) are divisible by 16. All common photo's formats have width and height divisible by 16. For example, 3456x2304, 3072x2304, 2816x2112, 2560x1920, 2496x1664, 2048x1536, 1728x1152, 1600x1200, 1280x960, 1024x768, 800x600, 640x480, 320x240.

Why some JPEG images cannot be rotated lossless?

JPEG file structure does not allow lossless rotation of a file if its width and height are not divisible by 16. If a file cannot be rotated lossless, JPEG Lossless Rotator asks you whether you want to crop the image edges by up to 15 pixels to make lossless rotation possible. In practice, most of the raw photos from photocameras are rotated losslessly and aren't cropped if their width and height can be divided by 8, even if the progarm shows the message.

Why does the file size change? It was 1352 KB, and then it became 1297 KB! What's happened? (My photo is 1024x768, so it should be rotated lossless)

JPEG file size change does not mean the same quality change. When you rotate your photo, JPEG-blocks have a new position and file size may be changed (decreased or increased).

Why doesn't automatic rotation work with my photos?

If your camera detects orientation (horizontal, 90°CW, or 90°CCW) how you hold it, then it could embed that info in the photo's EXIF tag, and JPEG Lossless Rotator can read this tag and rotate the photo with the correct orientation, automatically. However, some cameras do not have the orientation sensor and always put "Horizontal" value in EXIF orientation tag. Therefore, these photos cannot be rotated automatically.

Where are original photos which I had before the rotation?

JPEG Lossless Rotator rotates and overwrites the original photos for several reasons:
a) most users don't need the original photos with wrong orientation;
b) most users want to safe their disk space;
c) most users don't want to remember which photos are already rotated and which are not.

If you need original photos and photos in correct orientation, just make a copy of them before.

I like your free software. What can I do for you?

If you have a PayPal or e-Gold account, you can make a donation to support this web-site and software hosting.

Also you can translate JPEG Lossless Rotator interface to your native language or correct existing translations. The program now has Chinese, Czech, Danish, Dutch, English, French, German, Greek, Hungarian, Italian, Polish, Portuguese, Russian, Slovak, Spanish and Swedish interfaces. I would be glad to have any other translations. To translate the interface, you should download the zip-archive with language text file and translate the words and sentences after the "=" signs in each line. After that send me your translated file to the e-mail address from the contacts page.

Please contact me if you have any suggestions or questions.