ACR PSD files - larger file size and max compatible
When using ACR > Save As to save a bunch of PSD files from raw files the resulting PSD file sizes are larger.
for example:
if I output and save from ACR directly to a folder as a PSD, I'm seeing the file size at 63.1 MB
If I open the raw file to PS and save it within Photoshop to a PSD file the file size is 56.1 MB ( this is true whether the Max Compatible is turned on or off... probably because it's a flat PSD file)
why the difference? same output settings from ACR, bit depth etc.
Also,
The file saved out of ACR appears to be "tagged" as a Maximum compatible file even though it is flat, so subsequent saves, even if the PS pref is set to Never for maximum compatibility are disregarded. Whereas the same file that was opened into PS from ACR and then saved with the Never PS pref behaves correctly.
Is there a preference setting within ACR to not save the PSD's as Maximum compatible?
thanks
j
ACR 6.4
PS 12.0.4
10.6.7
Hi Noel
I may not have been clear in my post. It's not about PSD v. Raw file size, just comparing PSD files.
Starting with a raw file ( in this case a 5DmII CR2)
Using the same settings (mid-bottom of ACR window) when saving a file using the "save image" within ACR or opening the file into PS and then saving. This is where I'm seeing the file size difference.
The second part of the problem is that PSD files that are saved directly out of ACR using the "save image" (bottom left of ACR window) are all set as Maximum Compatibility. As a result opening these files will always be have the extra data and saving time that files with Maximum Compatibility enabled have. The only way to get around this is to have your PS prefs set to Never or Ask and the "Save As" to overwrite the file.
I just reprocessed a folder of PSD's that were saved out of ACR by overwriting as above and the 36 files (with layers, retouching etc) went from 6.9GB to 5.6GB, and the save time is also faster.
This isn't intended to be a discussion about the benefits or disadvantages of the Maximum Compatibiliy "feature", but just a question as to whether it can be turned off in PSDs saved from ACR.
thanks
j
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. . . . .. but just to check . . . .
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