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delias20027726
Participant
April 29, 2024
Answered

How do I keep a very large, 300ppi image under 20MB?

  • April 29, 2024
  • 2 replies
  • 804 views

Hello, thanks in advance for your help.

 

I have to print an image of 10800  ×  7200 pixels at 300 ppi, 8 Bits. The file size is 88MB and I need to lower it to 20 MB or less. This is based on the fact that I was given another image with the same characteristcs which is only 17 MB and I was requested to replicate the same weight. 

 

Do you have an idea of how this is done? Do you have your way to maintain such resolution and pixel count whilst keep the MB low?

 

Any input is highly valued 🙂 Cheers! 

 

Best, 

Delia

 

 

 

 

This topic has been closed for replies.
Correct answer jane-e

@delias20027726 

 

You didn't say if your file (or the other file) has layers, alpha channels paths, et cetera. If so, make a copy first to preserve your file, then flatten the copy and delete any paths and saved selections (alpha channels). Does that make a difference?

 

EDIT: 7 seconds behind Chuck.

 

Jane

2 replies

jane-e
Community Expert
jane-eCommunity ExpertCorrect answer
Community Expert
April 29, 2024

@delias20027726 

 

You didn't say if your file (or the other file) has layers, alpha channels paths, et cetera. If so, make a copy first to preserve your file, then flatten the copy and delete any paths and saved selections (alpha channels). Does that make a difference?

 

EDIT: 7 seconds behind Chuck.

 

Jane

    D
    delias20027726Author
    Participant
    April 29, 2024

    Hi Jane!

    I was doing everything right EXCEPT for one thing — I didn't flatten the image at the end of the process! I would merge all layers without flattening, which makes a huge difference.

     

    Thanks for your thoughts on this and for solving this! 

     

    Best, 

    Delia

    jane-e
    Community Expert
    jane-eCommunity Expert
    Community Expert
    April 29, 2024

    You're welcome @delias20027726 , I'm glad this worked for you. Remember to save the layered file for future edits.

     

    Jane

     

      Chuck Uebele
      Community Expert
      Chuck UebeleCommunity Expert
      Community Expert
      April 29, 2024

      What are the file types of the two files? If you're just printing, you can save a copy as a jpg to lower the file size. Just make sure you save the original. 

      D
      delias20027726Author
      Participant
      April 29, 2024

      Hi Chuck, thanks for your thoughts on this. @jane-e  was right, I wasn't flattening the image before saving it. 

       

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