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hope291
Participant
July 10, 2026
Question

How to remove creases from paper in Photoshop

  • July 10, 2026
  • 2 replies
  • 96 views

I was given a lot of photos of diagrams and asked to remove the creases so they would look a bit flatter. How can I do this in Photoshop?

The photo shows an example of creases.

    2 replies

    Trevor.Dennis
    Community Expert
    Trevor.DennisCommunity Expert
    Community Expert
    July 11, 2026

    I think this would have been somewhere between very difficult to impossible to do with Photoshop a year or two ago, but I think the Generative Ai tools might do it.  I am going to try with the following Prompt using Flux 2 Pro (because it is supposed to be the best model when text is involved)

    remove the creases in this scanned document. make the lines perpendicular to the image boundary. 

    Nope. That didn’t work

    I’m going to try again using Gemini 3.1 Nano Banana 2 with a different prompt:

    Straighten the lines in this scanned document. Fix the distortion making the lines straight and square to the image boundary. Remove the shading making the background white. Improve the contrast. Sharpen.

    Better, but the drawing is more narrow on the right.

    I’m going to fix that with Perspective C+rop.

    Note: I had to Duplicate the layer to a new document as Perspective Crop would not work with the Generative layers in the document.  I could have deleted or rasterized those layers as an alternative.

     

    And we are there.  Strange thing… my eyes are telling me the drawing is rotated slightly clockwise, but aligning Guides with the drawing shows it to be perfectly straight.  Is anyone else seeing that?

     

      Trevor.Dennis
      Community Expert
      Trevor.DennisCommunity Expert
      Community Expert
      July 11, 2026

      Note: the drawing is no longer to scale after the above process.  In fact some of the central partitions are drastically out.  This would probably be avoided with a different prompt. You have to put as much attention into telling the Ai what NOT to do as well as what you’d like it to do. This could be colours.  If you don’t specify colours the Ai will often get all bizarre on you and use unwanted colours.  I would add something like:

      ‘All of the drawing lines should be in essentially the same position, and only moved enough to straighten the lines and make them square to the boundary.

      It is always a good idea to use redundant statements in your prompts.  Say the same thing different ways.  That applies to both telling(asking) the Ai what you want it to do, and what you want it not to do.

      [EDIT]  Yes.  Thinking about it, you couldn’t possibly trust an Ai to edit an engineering drawing.

       

        c.pfaffenbichler
        Community Expert
        c.pfaffenbichlerCommunity Expert
        Community Expert
        July 10, 2026

        First off: Please ask for a proper scan of the image. 

         

        As that is likely to be pointless you could split the image into Smart Objects and warp them individually. 

         

          H
          hope291Author
          Participant
          July 10, 2026

           

           Thanks a lot for the tip! there are no better photos, said to work with it. And another point, is there any guide to this deformation like in your photo? I'm new to Photoshop so the most basic features. 

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