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Removing the white square in an otherwise clear bitmap image.


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3 hours ago, iMatt said:

What's the correct method of removing the white square around a TIFF bitmap image within Affinity Designer or Publisher?

White square you mean white line? Decreasing image size? (menu File, Document Setup, Dimensions, Rasterize & Trim).

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14 minutes ago, iMatt said:

The image is a TIFF bitmap

Which part?

  • The whole canvas?
  • The brown rectangle?
  • The white rectangle with the black pattern?

I'd be much more interested to see your expanded Layers panel, rather than an irrelevant collection of brushes and effects… ;)

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If you have Photo you could edit the image in that by using; File > Edit in Photo...  And once in Photo go to; Filters > Colours > Erase White Paper and then send it back to Designer.
A quick and dirty method might be to set the Layer’s blend mode to Multiply. Any content under white areas would then show through.

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Just now, loukash said:

Which part?

  • The whole canvas?
  • The brown rectangle?
  • The white rectangle with the black pattern?

I'd be much more interested to see your expanded Layers panel, rather than an irrelevant collection of brushes and effects… ;)

I'd have thought it obvious! How can I mean the whole canvas! And how can it be the brown rectangale when i mentioned the BLACK image?

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Just now, markw said:

If you have Photo you could edit the image in that by using; File in Photo...  And once in Photo go to; Filters > Colours > Erase White Paper and then send it back to Designer.
A quick and dirty method might be to set the Layer’s blend mode to Multiply. Any content under white areas would then show through.

Ok, will give this a go a bit later. Thanks.

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7 minutes ago, markw said:

If you have Photo you could edit the image in that by using; File > Edit in Photo...  And once in Photo go to; Filters > Colours > Erase White Paper and then send it back to Designer.
A quick and dirty method might be to set the Layer’s blend mode to Multiply. Any content under white areas would then show through.

THANK YOU! It worked like a charm. Will make a screenshot of your helpful reply in case I ever forget!

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59 minutes ago, iMatt said:

I wish the white square to disappear leaving just the black image.

In order to make it easier for others to understand next time, it is a matter of deleting the background of the image.
Whether it is a square or some other shape is completely irrelevant.

Affinity Store (MSI/EXE): Affinity Suite (ADe, APh, APu) 2.4.0.2301
Dell OptiPlex 7060, i5-8500 3.00 GHz, 16 GB, Intel UHD Graphics 630, Dell P2417H 1920 x 1080, Windows 11 Pro, Version 23H2, Build 22631.3155.
Dell Latitude E5570, i5-6440HQ 2.60 GHz, 8 GB, Intel HD Graphics 530, 1920 x 1080, Windows 11 Pro, Version 23H2, Build 22631.3155.
Intel NUC5PGYH, Pentium N3700 2.40 GHz, 8 GB, Intel HD Graphics, EIZO EV2456 1920 x 1200, Windows 10 Pro, Version 21H1, Build 19043.2130.

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