Scanner to Photoshop changes dpi

[au96alum]

So I have a Plustek Opticpro A320E Flatbed Scanner and I set up the quality to scan in 600dpi but when it opens up in Photoshop it comes over in 300dpi.  When I talk to Plustek...they said its on the adobe end and I am doing everything I supposed to do in their software driver.  Why isn't Adobe Photoshop opening the file the way it is supposed to be scanned out?

[Stephen_A_Marsh]

Does the scan contain the correct number of pixels for a 600ppi resolution? I'm trying to understand if this is just the PPI metadata that is 300 when it should be 600, or if the actual pixel quantity is incorrect. So this is separate software, not some scanning plugin inside Photoshop? Can you supply a link to a scan that has not been opened in Photoshop?

[mglush]

Are you opening the file in Photoshop or are you importing it into another image? Shtepen has a really good point--about the resolution, when you open the image and it is 300 ppi, when you look at the rulers, is the size of the image doubled?

Michelle

[au96alum]

I'll check tonight.  I was just expecting the "size" to be set as 600dpi when opening it in Photoshop that I didnt' pay attension to the pixel or inches dimension to see if it was larger.

[TheDigitalDog]

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@au96alum wrote:

I'll check tonight.  I was just expecting the "size" to be set as 600dpi when opening it in Photoshop that I didnt' pay attension to the pixel or inches dimension to see if it was larger.

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All that matters is the pixels. The resolution otherwise (300PPI (not DPI) or 600PPI) is simply metadata that has no bearing on the actual number of pixels. The scanning software should be providing this metadata for Photoshop so I don't necessarily believe what Plustek told you. But when the rubber meets the road, it doesn't matter. If you ask for 3000x3000 pixels, if you get that, the tag doesn't matter. Adobe is only reporting what the scan software tells it but if you can upload an original scan, to something like Dropbox, we might be able to examine the metadata.

[bellevue scott]

The digital dog said what I was going to. Check the number of pixels being made and then in PS. I have a feeling the metadata isn't being read correctly or PS is overriding it and distributing those pixels as "300 PPI".