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Participant
March 26, 2022
Question

Why does Photoshop save a BMP file along with the PSD when scanning?

  • March 26, 2022
  • 1 reply
  • 1305 views

Whenever I scan a document or image into Photoshop and save it as .psd, I end up with a .bmp file of the same scanned document or image. And it's a really huge one too. I don't have problems opening the .psd file if the .bmp is deleted. But, why does this happen and how do I fix it?  I'm using the latest trial version of Photoshop on Windows 10.

Thanks,

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1 reply

Legend
March 26, 2022

Because Photoshop itself does not scan.

If we are talking about the WIA interface, then scanning is carried out directly through the driver, so the scanning profiles specified in the scanner software or the operating system (including specifying the saving format) do not work. The scanner simply receives the "scan" request and outputs the data in a "raw" format

Participant
March 26, 2022

Yes, it's the WIA interfce.

So, is there a way to stop this from happening, or is deleting the .bmp after saving as .psd my only option?

Per Berntsen
Community Expert
Community Expert
March 26, 2022

WIA saves files in the BMP format by default, and there are no options for other formats.

Other scanning options are also extremely limited, and I suggest that you use the standalone scanning software that came with your scanner instead, or a third party solution, like VueScan.