ImBatch is an interesting batch processing tool which can convert, resize, rotate and carry out other operations on lots of images in a single operation.

Adding images is as easy as dragging and dropping them onto the program, and ImBatch supports plenty of file formats: BMP, DIB, RLE, TIF, TIFF, FAX, G3N, G3F, XIF, GIF, JPG, JPEG, JPE, JIF, PCX, PNG, TGA, TARGA, VDA, ICB, VST, PIX, PXM, PPM, PGM, PBM, WBMP, JP2, J2K, JPC, J2C, DCX, DAT, PSD, WDP and HDP.

Clicking "Add Task" then allows you to choose exactly what you'd like to do with these files. The options available are "Save As" (convert format), "Resize", "Rotate", "Soft Shadow", "Flip", "Round Corners", "Convert Colours", "Convert to Gray", "Set Tag", "Remove Tags" and "Shift Time" (the final 3 all relate to EXIF tags).

As you combine these tasks, so a Live Preview window shows you what they'll do to your target image.

There's even a task command to upload your processed images to Facebook, so you won't have the hassle of doing this manually.

Version 6.4.0 (see full changelog):

- Fixed problems with multithreaded processing.
- 'Optimize for Web' task: Added support for the mozjpeg library.
- 'AutoCrop' task: added cropping by contour method.
- Added option to force the use of Adobe Acrobat (if installed) to open the PDF format.
- 'Watermark Text' task: Improved text rendering.
- 'Set Background Image' task: Fixed changing the information about the size of the image in the preview window.
- 'Add Selection' task: Fixed display of controls in the preview window.
- 'Watermark' task: Fixed resizing of the control elements of the task when changing the size of the window.
- Fixed display of sizes in the preview window for a PDF file.
- Fixed soft shadows on translucent pixels.
- Fixed errors when closing the program and some task is open.
- Fixed error on filtering an empty images list.

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ImBatch provides plenty of image batch processing power, yet remains fairly easy to use.