Adobe Photoshop/scanning resolution

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Expert: - 5/10/2010


Question
hello!  i have a hard copy of a photo size 4x5 cm, if i want to reprint it in 4R, how do i calculate the resolution needed for scanning?

Answer
Hi Chez,

To print at 4R you'd need to enlarge it 300%. If you are printing traditional offset you would scan it at 900dpi. If you are printing these on an inkjet printer, find out the resolution of the printer and triple it for your optimum scanning resolution. Increase the resolution if you need to crop the picture after scanning.

For a more comprehensive discussion of resolution see this page: http://www.bestprintingonline.com/resolution.htm

Hope this helps,
Glen Demers
Adobe Certified Expert, Photoshop 7
Prepress Technician, Best Printing Online
www.bestprintingonline.com

For more Photoshop tips please visit our help pages here: http://www.bestprintingonline.com/photoshop.htm

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Glen Demers

Expertise

I am an Adobe Certified Expert in Photoshop 7 and can answer any questions dealing with images for print; resolution, color correction, color space, sharpening and retouching. I am a prepress technician for Best Printing Online and if you want to know how to prepare your image for offset reproduction, I can help.

Experience

I've been working in the prepress aspect of printing for 25 years and am currently a prepress technician for Best Printing Online
I've worked with Photoshop since 1994 and have used all versions from 3 to CS3. I'm an ACE (Adobe certified expert) in Photoshop 7.0

Education/Credentials
I graduated High School and took 1 year of College level offset printing course. I've attended 2 Photoshop World conferences and taken numerous seminars pertaining to Photoshop and the print industry.

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