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Opening a photo in photo processing creates huge files


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#1 HmJ28

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Posted 02 January 2015 - 03:39 PM

A short time ago photos I open in Photoshop cc or Elements 11 open in huge size files.  I realize that these programs open the uncompressed files, which are larger than what shows on my harddrive, but when a 6 MB file opens as 51 MB, that seems excessive. As I work on the photo, the file rapidly become unworkable, using huge amounts of memory.  Can anyone help me with this?  I have been on an Adobe forum and haven't been able to resolve this.



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#2 Platypus

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Posted 02 January 2015 - 06:57 PM

Welcome to Bleeping Computer. Whether what you're describing is unusual depends on a few factors. As you say the size variation can just come down to compression, as well as layers. What are the file formats and when you say "huge" amounts of memory, how much?

 

A 6MB .JPG could easily be compressed enough to be 51MB in RAM, especially if it has layers. Photoshop if I recall correctly uses default allocations that should allow filesizes over 1 GB to be handled. A more common cause of bogging down or instability is if the image RAM allocation is set very high to handle large images, but then a lot of effects plugins are used. Photoshop allocates a dedicated memory pool for plugins, and setting image memory very large robs this.


Edited by Platypus, 02 January 2015 - 06:58 PM.

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#3 HmJ28

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Posted 02 January 2015 - 07:53 PM

Thank you for your reply.  I have been adding more and more layers to my photo work, and noticed the very large file sizes when everything slowed down.  I'll keep an eye on the size of my files from now on, and perhaps it won't be a problem.



#4 Platypus

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Posted 02 January 2015 - 08:12 PM

Yes, layers can do it. The representation of each layer in memory is the size of the image, but can be stored in the file just as differences.


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