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jim78b1
jim78b1
Inspiring
July 15, 2019
Question

indesign cs6 image ppi

  • July 15, 2019
  • 2 replies
  • 1037 views

I know that if I increase the ppi of an image (shrinking it) the file increases in size, but even if I lower the ppi manually from indesign (example: 100 to 150%) does the file grow in size?

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    2 replies

    Frans v.d. Geest
    Community Expert
    Frans v.d. GeestCommunity Expert
    Community Expert
    July 15, 2019

    You can not change the pi in InDesign, ony the size ('scale'), the ppi changes with it: bigger image scale, lower ppi, smaller image scale, higher ppi.

      jim78b1
      jim78b1Author
      Inspiring
      July 15, 2019

      yes right. but if you place an image ant than scale it ex:100%§ to 50% on indesign window i see that ppi is double so if i save the file is more big, i ask to meself if i scale from 100 to 150 the file size will reduce?

      E
      Community Expert
      Eugene TysonCommunity Expert
      Community Expert
      July 15, 2019

      No.

      The file is not changing size. The density of the pixels is changing, not the total pixels in the image.

      The Print Guide: Image resolution for printing - LPI vs DPI a.k.a. LPI vs PPI a.k.a. LPI vs SPI

      Derek Cross
      Community Expert
      Derek CrossCommunity Expert
      Community Expert
      July 15, 2019

      If you mean the file size, changing the PPI doesn't change the size, the image stays the same size whatever the resolution. Resolution is only significant when it comes to printing. This image is the same size – 45.4M at both 300PPI and 72PPI, only the dimensions change.

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