Photoshop Tutorial : Mixing image sizes when dragging between documents


Posted: August 27th, 2007 | Author: Jennifer Farley

People new to image editing in Photoshop are often puzzled when they drag an image from one document window to another document and the sizes don’t match. You may have found that you have two documents which look about the same size when they are side by side, but when you drag one photo onto the first image appears really small (or really big). So what’s the story? Well, you need to look at the resolution of each image to understand why this happens.

In the example below you can see two images. The makeup image on the right has a resolution of 150-ppi, the silk image on the left has a resolution of 300-ppi document.

imagesizes clip image002 Photoshop Tutorial : Mixing image sizes when dragging between documents


The makeup image is displayed at 100%, while the silk image is displayed at 33%. When the makeup image is dragged on top of the silk image, the results appear as below.

imagesizes clip image004 Photoshop Tutorial : Mixing image sizes when dragging between documents


Suddenly the makeup image looks tiny.

If you take a look at the magnification level shown on the title bar of each document window, you will get a big clue about how they will appear when one is dragged on top of the other. You can also check the resolution of any image by choosing Image > Image Size. This opens the image size dialog box.

imagesizes clip image006 Photoshop Tutorial : Mixing image sizes when dragging between documents


A general rule of thumb for Resolution is to use 72 ppi (pixels per inch) if you are preparing an image for use on the web and 300 ppi if the image is to be professionally printed.

 

Related posts:

  1. Photoshop Quick Tip: Save time by making your own custom document sizes
  2. Photoshop Quick Tip: Find the centre of your document
  3. Photoshop Quick Tip: Displaying Image Size Information in Photoshop
  4. Photoshop : Quick Tip – Using the dimensions of one image to crop another image.
  5. Photoshop : Quick Tip – See RGB and CMYK at the same time

Filed under: Photoshop Tutorials | Tags: , | 4 Comments »

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4 Comments on “Photoshop Tutorial : Mixing image sizes when dragging between documents”

  1. 1 gajanan said at 8:59 am on June 14th, 2008:

    send information about that……….

  2. 2 K8 said at 9:44 pm on November 29th, 2008:

    *tsk* so obvious!

    Kicking myself here. I was forever getting frustrated with the fact that an image seemed tiny, yet was apparently 25cm wide. Very awqward when attempting to create images for a blog.

    Resolution!!!

    Got it now :)

  3. 3 Jennifer Farley said at 12:05 pm on December 1st, 2008:

    To paraphrase the Tracey Chapman song;

    “Doncha know, talking about the Resolution, sounds like a whispa”…

    Yes K8, resolution can be a bit tricky when going between something that’s suitable for print (high resolution, big images) to something that will be use on the web (low res, smaller images).

  4. 4 vakeel said at 7:30 am on August 8th, 2009:

    now i have rule of photoshop mixing


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