Batch compress large number of TIFF files?

I have a large number of very large, uncompressed tiff files. I'd like to batch compress them all and output LZW (lossless) compressed tiffs. Can anyone recommend a tool (preferably free or shareware) that will do this?

Thanks.

Bob Meyer said:

I have a large number of very large, uncompressed tiff files. I'd like to batch compress them all and output LZW (lossless) compressed tiffs. Can anyone recommend a tool (preferably free or shareware) that will do this?

Thanks.

Click to expand...

You could write an action to do this, then run the action in batch mode.

Open a file, record the action, "save as" a tiff with the parameters you want, stop the action. You do not have to record the closing of the file.

Highlight the Action name, File> Automate> Batch
Choose the Source Folder with the original tiffs in it.
Choose the Destination Folder as the same folder as the originals.
Do not check the Override Action "Save As" Commands Box
The action will overwrite the original files with the new tiff parameters.

Test the action by putting one file in a folder. After you run the batch, open the file and do a save as to verify the file was saved with your parameters.

There is nothing more to the action than the "save as" part, unless your original image is not flattened. If so, then you would have to add flattening before the "save as" step.

Mike

Assuming you have Photoshop go to File > Scripts > Image Processor...

Ronald

Irfan view can do it, it's freeware and faster than photoshop. You can also batch convert them to PNG which is even more compact than LZW compressed tif.

1. Open irfan view
2. hit the 'b' key on the keyboard to open the batch window.
3. Choose output format, choose tif, hit options, choose lzw. Or you could choose PNG.
4. Remove checkmark 'use advanced options'. You don't need it unless you wish to resize etc.
5. Choose output folder (somewhere different than the input folder or it will overwrite the original files)
6. choose input files (in the 'look in' drop down list upper right and the list below it), select them and click add
7. Once the files are in the lower list you can hit 'Start batch' and it will do it's job

Be sure to check if the embedded profile in the tif has made it to the comrpessed one, irfan view sometimes messes up the profile.

Bob Meyer said:

I have a large number of very large, uncompressed tiff files. I'd like to batch compress them all and output LZW (lossless) compressed tiffs. Can anyone recommend a tool (preferably free or shareware) that will do this?

Thanks.

Click to expand...

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I don't ordinarily shoot TIFF, but the freeware Fastone has a pretty good batch processing utility

Thanks guys. Sorry I didn't acknowledge your suggestions sooner. I kind of lost track of this thread. I have PS5, so I'll look at that option first.

I came across this thread when researching the same problem as the OP. I have tried compressing uncompressed 48 bit TIFFs using both IrfanView and FastStone Resizer but the issue is that, according to EXIFTool, the BitsPerSample then changes from 16 16 16 to 8 8 8. In other words my 48 bit files change to 24 bit. I also tried saving the uncompressed files with both LZW and ZIP compression in Photoshop but the former resulted in a larger file while the latter only reduced the size by about 5%.

Is there a way of significantly compressing TIFFs and ending up with smaller files but without reducing the bit depth?

PhotoLine (www.pl32.com) can do this with "File > Functions > Batch Converting".

But compressed saving is only possible when it is registered.

Ronald Keller said:

Assuming you have Photoshop go to File > Scripts > Image Processor...

Ronald

Click to expand...

Also available in Bridge.

Select files then go Tools/Photoshop/Image Processor.

Terry