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Placed image in illustrator is the wrong size even though the original was sized in photoshop

Mar 17, 2013 12:53 PM

Tags: #illustrator #photoshop #image #size #resolution #place #placed_image #wrong_size #sizing_issues #illustrator_image_problem #image_wrong_resolution_and_size_in_illustrator

Hi when i size an image in photoshop and then 'place' it in illustrator the 'placed' image is way smaller in illustrator than in photoshop.

 

 

To give an example I just created a photoshop canvas of 900px x 900px with a resolution of 300ppi and filled it with a red colour. I then saved this image as a jpeg so the jpeg had a dimension of 900px x 900px.

 

 

I then opened an illustrator document setup to 900px x 900px at 300ppi and 'placed' the red jpeg I had just created in photoshop into illustrator.

 

 

Now I would expect the 'placed' jpeg to cover the entire artboard in illustrator because the jpeg is 900px x 900px and so is the artboard. However what actually happens is the 'placed' image appears but is over four times smaller in illustrator!! In itself this isn't a problem but then when I scale it up to the size I want e.g. 900px x 900px, the resolution starts to decrease and do so drastically!

 

 

How can I solve this problem as I want to size a photo and 'place' it into illustartor at the correct size and at 300dpi so that I can print it!

 

 

Please help! Thanks in advance!

 
Replies
  • Currently Being Moderated
    Mar 17, 2013 1:07 PM   in reply to mrplod1999

    AI always assumes that raster images are 72 ppi so a raster at 300 ppi is shown in AI at 24%. Check the resolution in the Document Info window

     

    Screen Shot 2013-03-17 at 1.05.51 PM.png

     
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  • Currently Being Moderated
    Mar 17, 2013 1:32 PM   in reply to mrplod1999

    mrplod,

     

    It all sounds rather odd, but you may just:

     

    1) File>Place the image in a suitable document, which may be in RGB Color Mode and with points/pixels as the unit (you may link to it instead of embedding it to keep the file size small),

    2) Resize the image to the desired size by changing the W or H value in the Transform panel, and move the image to have its corner at X=Y=0 and fit into the Artboard.

     

    Illy just presents the image as it is without resampling, whichever size you give it, the absolute size in pixels x pixels will remain the same.

     
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  • Currently Being Moderated
    Mar 17, 2013 3:12 PM   in reply to mrplod1999

    mrplod,

     

    If you choose a photograph with a certain absolute size in pixels x pixels (such as 3648 x 2736) and place it on the Artboard,

     

    1) Which W x H size is shown in the Transform palette/panel?

     

    2) Does the W x H size mentioned in 1) multiplied by 72 give the absolute size in pixel x pixel? If not, there is something wrong, possibly with the preferences. In that case, you may try to Move the folder

     
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  • Currently Being Moderated
    Mar 17, 2013 4:23 PM   in reply to mrplod1999

    mrplod,

     

    Ah, now I know what you mean.

     

    Illy basically works in points, 1 point = 1/72 inch, and the unit pixel (which you can choose instead of points, inches, etc) is set to the same value, 1/72 inch. This ambiguity is part of the difficulty in grasping all this.

     

    I've chosen an image that is 3508px x 2631px and is 300ppi.

     

    An image that is 3508px x 2631px is just that: this is the pixel size, meaning that it is made of 3508 x 2631 = 9,229,548 pixels (small squares), each of which may have its own colour, no more, no less.

     

    This image can be represented at any size in any application, and that size will determine its resolution in PPI (Pixels Per Inch). If you divide the size by 300 to get a resolution of 300 PPI you will get 11.693 x 8.77 inches = 841.92 x 631.44 points/pixels (understood as the unit 1/72 inch).

     

    This means that if you want the image to have a resolution of at least 300 PPI you cannot make it larger than 11.693 x 8.77 inches = 841.92 x 631.44 points/pixels (pixels as units in Illy).

     

    If you want a larger image at 300 PPI you will have to start with a larger original image.

     

    An image fitting an Artboard of 900 x 900 points/pixels = 12.5 x 12.5 inch at 300 PPI will have to be 3750 x 3750 pixels (300*12.5 = 3750).

     

    Are you sure that is the actual size of the red square you made in Photoshop? If so, I have no clue why it shows up the way it does in Illy.

     

    Edit:

     

    I just reread this:

     

    I then saved this image as a jpeg so the jpeg had a dimension of 900px x 900px

     

    When you export as a JPEG, you can set a resolution, but you can also just save it at an actual pixel size (as in Save for Web & Devices) such as  900 x 900 pixels. Maybe that is where things go wrong.

     
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  • Currently Being Moderated
    Mar 18, 2013 2:38 AM   in reply to mrplod1999

    You are welcome, mrplod.

     

    It is a rather confusing choice to set pixels = points as a unit, undoubtedly stemming from the once standard 72 PPI for monitors.

     
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