Skip to main content
P
Philip Doyle
Participant
October 26, 2019
Question

Noob question- massive .psd files

  • October 26, 2019
  • 3 replies
  • 385 views

Hi all, 

   Making a presentation on 24" x36" paper and wanting to use a 6.75mb .jpg imported from google earth as a background for entire board. . 

When I drag the image onto my blank 24x36 (set at 300 dpi) the file immediately becomes 621mb. Adding a couple of more images it immediately becomes over 1gb. 

   I'd like to have this printed, but save as > PDF is 407mb. 

Sorry for this basic question, it's always stumped me when trying to learn this progam. 

Using 2019 CC on windows 7. 

 

Thank you, Philip 

    This topic has been closed for replies.

    3 replies

    T
    Test Screen Name
    Legend
    October 27, 2019

    Also... the effective resolution (pi) of your background will be tiny. You can’t fix that by setting a huge file from it. Also: don’t add text with Photoshop for a project like this. Use Illustrator or Indesign. 

    P
    Philip DoyleAuthor
    Participant
    October 27, 2019

    ok-thanks for the tip. I was trying to keep everything "easy" by using one program (I'm learning this in a time crunch) but using Illustrator/In-Design is  the better program. 

    Stephen Marsh
    Community Expert
    Stephen MarshCommunity Expert
    Community Expert
    October 27, 2019

    You need to ask yourself, do you really need a resolution of 300ppi for the intended image content, output method and viewing distance/conditions.

    P
    Philip DoyleAuthor
    Participant
    October 27, 2019

    probably not. do need it printed on 24x36, so maybe 200ppi? I'll be sending out as PDF most likely, so anything else I can do reduce file size? 

    T
    Test Screen Name
    Legend
    October 26, 2019

    This is just math. 24 by 36 inches, 300 pixels per inch. That’s 24 x 300 = 7200 pixels by 36 x 300 = 9600. Each pixel uses 3 bytes in ordinary RGB so your image is 9600 x 7200 x 3 bytes. Which is over 200 megabytes per layer plus another 200 megabytes for the flattened image. So the large file sizes are just what you asked for. I have to say, you seem to be adoring for something extraordinarily large, so if you tell us what you want to end up with we may be able to reduce your sizes. 

      P
      Philip DoyleAuthor
      Participant
      October 27, 2019

      Math be praised. That makes sense. 

      I'm just want to make sure that when I print out to that size that the resolution is decent. Dropping it down to 200ppi, automatically drops the file size to 76mb. I have to take this to printer, so just not wanting to take them a 1GB file and having to deal with their eye rolls. If it were a photo I would imagine a 15-20mb file would look fine at that size-so just looking for ways to reduce image and still print well. 

      P
      Philip DoyleAuthor
      Participant
      October 27, 2019

      Also, I'm correlating PPI to DPI and realizing that are distinctly different. Just printed something out at 100 PPI and looks decent. 

      Terms & ConditionsAccessibility statement
      Using the community Terms of use Privacy Cookie preferences Do not sell or share my personal information ad choicesAdChoices