Photoshop resizing question, please help.?

Question

I have been working on a photo which has to be printed on a A4 paper and then cuted to 29cm x 20cm (less smaller than actual A4). Initially my settings were 32cm x 24cm, but then I needed to cut it down to the one I mentioned first, so I went to Image Size and resized it to that value in cm, but the problem is in resolution. It kinda cuted a lot of pixels. Being 29x20cm it's only 1142x787. So the question is, will it print normally being said that it is 29x20, because when I zoom up to 100% in Photoshop it looks ok, but the number of resolution in pixels bothers me somehow. Thanks.

Answer 1

Image Resizing for Printing:



Cropping and Resizing An Image For Final Output: http://www.zuberphotographics.com/content/printing/resizing.htm

Resizing Pictures to Standard Print Sizes: http://www.zuberphotographics.com/content/printing/resizing.htm

How to Resize a Photo for Printing: http://www.ehow.com/how_4442570_resize-photo-printing.html

Resizing Images for Printing in Photoshop: http://www.scrapjazz.com/topics/Computer_Center/Printing/916.php

How-to Resize an Image For Printing - Adobe Photoshop Beginner Tutorial [Video] : http://www.youtube.com/watch?v=biH-FSeu3RM



Ron

Answer 2

You're mixing up a lot of technical terms.



With those image dimensions, your 29×20 cm print has a resolution of about 100 pixels per inch (ppi). This is okay for prints that will be viewed from a distance (at least one body length away), but may show pixelation at arm's length. As JR states, a resolution of 300 ppi is recommended for handheld work.



This ignores the problem of what the printer itself actually does with the image. Some models may apply their own built-in refinements to conceal pixelation or otherwise tweak the image.



You cannot accurately judge print resolution in Photoshop, because your monitor's resolution stays the same regardless of zoom level. The only way to tell is to print a sample at the same resolution using the same printing equipment.

Answer 3

To be printed, your original image must have a "defined" resolution:

- on a standard printer, 72px per inch is the minimum.

- on a "good" printer, 150px/in is the minimum

- on a printer's press (book quality), they will require at least 300px/in.



So... A4 = 290 x 210 = 11.4in x 8.26

On your home printer, the photo must be: 11.4in x 72px = 822px high minimum.

On the good printer: 11.4 x 150 = 1710px

For the printer: 11.4 x 300 = 3420px.

Since you have 1142px, you are just above the "home" printer, but not good enough for one of these new, good printers (who can go up to 300px/in!)

Check your source image size: min as above, depending on your objective.

Check Photoshop resolution: 72 or more...

Don't bother with cm or inches! It is the wrong approach: you resize AT PRINTING TIME!