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barbaras62270268
Participant
February 18, 2022
Question

photo composites 72 vs 300 dpi

  • February 18, 2022
  • 1 reply
  • 403 views

I have created photo composites in photoshop for an art exhibit and they were automatically saved at 72 dpi. I want to print them out large so I saved as a tiff file at 300 dpi. The files were large, but the curator said they will lose their quality printed large. So I'm guessing the info didn't translate. It just made the file larger.

 

How do I remedy this?

 

Also, not all of the photos I mixed (composited) were the same quality. Does that matter?

 

If I can't remedy the composites I already made, how do I deal with this going forward. Considering I would like to print large.

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1 reply

c.pfaffenbichler
Community Expert
c.pfaffenbichlerCommunity Expert
Community Expert
February 18, 2022

A file’s Resolution is basically irrelevant. 

1000px in an image with 72ppi Resolution are no worse than 1000px in an image with 300ppi Resolution. 

The image’s Effective Resolution (depending on the actual output needs) is what matters. 

 

What are the image’s pixel dimensions (prior to resampling) and what is the intended output size? 

 

As for technique: 

• Smart Objects 

• Smart Objects 

• Smart Objects 

In a composite one can keep (and clip) various elements at their native Resolution and Color Space while combining them in a file with its own Resolution and Color Space. 

If the file needs to be enlarged later on all the elements »directly within« the containing file (Layer Masks for example) will have to be upsampled (and the effect of Smart Filters may change), but the Smart Object instances can still utilize whatever they have in additional image data. 

    B
    barbaras62270268Author
    Participant
    February 18, 2022

    Thank you! I get the point, but I'm still not clear if it's possible to remedy this. Or is it too late? Isn't the photoshop document able to accomodate all changes without damage?

    Per Berntsen
    Community Expert
    Per BerntsenCommunity Expert
    Community Expert
    February 18, 2022

    As already asked by @c.pfaffenbichler – what are the pixel dimensions, and what is the intended print size?

    Enlarging an image will reduce image quality, but a small degree of enlargement may work.

     

     

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