Community Expert

Question

Stock Photo File Compression

Forum|Forum|6 years ago
September 24, 2019
6 replies
1133 views

Good afternoon to you.

I am havng an issue whereby most of my images are compressed too much by Photoshop. A RAW image that is of file size 13.9 MB is compressed to JPG file size of 667.38KB, which is far lest than the requirement for upload; another of RAW 14.6MB is compressed to JPG 1.7MB, and there are several more. From a total of 19 files 13 files are compressed to file size ranging from 566.19KB to 4.41MB.

Please note:

File size here is not refering to demention (length x width).

Are you able please to refer this to the correct department.

Best wishes

Jacquelin

This topic has been closed for replies.

jacquelingphoto2017

Author

Community Expert

Thank you evryone for your kind answers, some of which are inssigtful. It would appear the issue has caught the attention of relevant personnel(s) and is now resolved. I have today attempted resaving the affected images. The images are now less compressed when saved as JPG files, hence I'm having larger file sizes. Other files saved since are within the file-size of my expectation. Thanks again.

Best wishes

JG

Per Berntsen

Community Expert

The sceenshot is small, but as far as I can tell, most of the image seems to be sky, and sky areas compress really well, resulting in a small file size. So 1.7 MB seems reasonable.

If the image looks good at 100% view, there is nothing wrong with it.

jacquelingphoto2017

Author

Community Expert

Hi Per Berntsen, thank you for you reply. Just to clarify. The screen shot I posted was in responce to Just Shoot Me comment about my settings. The sky image was not the subject of that screenshot. That sky image is a RAW 13.9MB image compressed to JPG 667.38KB. The image that is reduced to 1.7MB is not posted on this thread, and also it is a plant photo The sky image in the Photoshop frame was rejected for technical issues.

Abambo

Community Expert

So your initial 1.7kb was a typing mistake and should be read 1.7Mb? 1.7 Mb is not too small for some images.

ABAMBO | Hard- and Software Engineer | Photographer

jacquelingphoto2017

Author

Community Expert

Abambo

Community Expert

Except for the Colour space, I do not see a problem. And the Colour space does not affect the size.

ABAMBO | Hard- and Software Engineer | Photographer

Just Shoot Me

Legend

I'm moving this discussion over to the Photoshop forum.

Just Shoot Me

Legend

A RAW file that is originally only 13.x MBs in file size is kind of small in today's standards, usually from an older lower MP camera, somewhere around 10-12MP sensor.

The file size of converting that RAW to a JPG in PS is dependent on your settings when saving the JPG file to disk.

I just took a Leica M9 RAW file, a DNG, that was 17+ MBs in file size, from a 18MP sensor. Opened it in PS, which first opened it in Adobe Camera RAW, and then saved it as a JPG with the Quality set at 12. The resulting JPG file size was 12+ MBs.

Taking a leica M8 or Panasonic LX 5 or 100 RAW image, all having around a 10MP sensor and a file size of around 10-13 MBs in size the same jpg convertion resulted in a JPG file size of 6 to 9 MBs in size.

So it is not PS that is doing this but the settings you have selected when saving the file as a JPG.

jacquelingphoto2017

Author

Community Expert

Thank you for your reply. Please find attached a screenshot copy of the setting while saving. I have been using this camera for about a year now and this is the first I've seen such small files.

Abambo

Community Expert

Hi Jacquelin,

Could you add an example file? Especially 1.7kb looks ridiculously low...

ABAMBO | Hard- and Software Engineer | Photographer

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