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Exported images are pixelated

May 26, 2012 8:06 PM

Tags: #cs4 #fonts #settings #images #exporting #saving #logo #pixelaed #illustartor

I am having trouble with ALL of my exported images.  The only one I can say that have come out better have been a high quality print PDF.  JPG, GIF, EPS - all have turned out to be pixelated.  I know what I am doing and this has never happened to me before.  I asked in two other forums and the people acted like I was stupid!  I have been working with these programs for years!  I just may not be wording my problem correctly, so bare with me. 

 

I created a logo in illustrator and it looks great on the screen, but when I export it as say a JPG and bring it back in to illustator it looks horribly pixelated.  I am exporting at the highest level possible.  Is there another setting that would cause it to be pixelated? 

 

I have tried so many different things now I am not sure what else to do.  Could this be cause by a lacking update?  A bad set of fonts with a virus, maybe? I don't know anymore - any help will be GREATLY appreciated!

 

This all just started I was working on it just fine a couple of days ago with no problems and now everything has been different. 

 

TYIA

 
Replies
  • Currently Being Moderated
    May 26, 2012 9:34 PM   in reply to vividdesigngirl

    Why are you importing a .jpg file into Illustrator when you already have illustrator artwork? What resolution are you exporting? Are you scaling the artwork after importing it into Illustrator?

     

    This is probably just a result of the limitations of the file format you exported and the resolution of your export. There is no reason to export to a raster format such as .jpg only to reimport into Illustrator. Tell us what you are trying to accomplish. Tell us more about the steps yo are taking and why.

     
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    May 26, 2012 9:37 PM   in reply to vividdesigngirl

    I am assuming you were using the save for web and devices.

    Just below the presets are some tabs. the middle tab is Image size. What is the size listed for width and height in pixels.

     

    If you use export then choose jpg, you can not see what the pixel size will be.

     

    If you are doing the latter and not the former, then let us know what size in pixels your artboard is set to.

    File>Document Setup to change units to pixels, then click the edit artboard button.

    Right hand corner of top tool bar will display the size of the art board in pixels.

     
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    May 27, 2012 11:09 AM   in reply to vividdesigngirl

    Make the art a symbol and use that instead of an image then make your book art. If your book art is a 3D effect t you map the symbol to that art.

     
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  • Currently Being Moderated
    May 27, 2012 7:28 PM   in reply to vividdesigngirl

    For a book cover, unless it is a very small book, has too few pixels and will look pixelated when printed...or probably when zoomed in to 100% on screen.

     

    Probably looks OK in Word because you don't zoom to 100% pixel view in Word.

     

    300 pixels prints well at 1" size but will look crappy at 3"

     
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  • Currently Being Moderated
    May 27, 2012 7:51 PM   in reply to vividdesigngirl

    Go to Effects > Document Raster Effects Settings and increase the resolution ppi to 300

     

    But you also should be able to apply the 3D effect on your objects directly if you group them or make them as one symbol.

     
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    May 27, 2012 9:00 PM   in reply to vividdesigngirl

    I guess it depends on what you mean by book cover and the media it will be displayed on.

    For print when exporting to a raster format like jpg, png, tiff, etc. Keep the following formula in mind:

     

    inches x ppi = pixels

     

    or

     

    pixels / ppi = inches

     

    ex.

     

    4" x 5" @ 300ppi = 1200 x 1500px

     

    4 x 300 = 1200px

    5 x 300 = 1500px

     
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  • Currently Being Moderated
    May 29, 2012 9:03 PM   in reply to vividdesigngirl

    Your document in illustrator is it set to pixels or physical dimensions (inches, centimeters or milimeters)?

     

    It will make a difference on what your answer will be.

     
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  • Currently Being Moderated
    May 29, 2012 10:11 PM   in reply to vividdesigngirl

    OK, so @300ppi your image when export to jpg should be 8x300=2400px and 5x300=1500px  and the logo should be 4.5x300=1350px and 10x300=3000px

     

    So your original pixel size was way off. and therefore pixelated.

     

    When you set the units to pixels the ppi is irrelevent since ppi is only related to printed material.

     

    If you have no intentions of printing the image, then why use inches? I know its familar, but with a monitor, it doesn't rely on phsyical dimentions.

    In fact, that may be the issue you are having, when viewing the image the viewer app does not rely on ppi at all, it disreguards it. And therefore you can set the ppi to anything you wish and the viewer will still see it as 72ppi or thereabouts. When you design anything for the screen whether it is TV, computer monitor, a projector, etc. always use pixels. Set your units to pixels and use save for web and devices so you can verify the correct pixel size.

    Then the quality should be what you expect.

     

    Think about it...

     

    8x72=576px and 5x72=360px  576x360 is much, much smaller than the 2400x1500 that you need, if you are to print it or scale it using an app that respects physical dimentions like photoshop, indesign or illustrator.

     
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  • Currently Being Moderated
    May 30, 2012 6:25 AM   in reply to vividdesigngirl

    vividdesigngirl, it is obvious that you used File > Export, chose JPG, and in the Resolution section of the JPG Options window,  for Depth you had Screen selected which is 72 ppi. This makes your 8 x 5 inches book at 576 by 360 pixels. It is not true as you said previously that you exported with the highest level. If you had chosen High in the Resolution section, your jpg image would have been 2400x1500 pixels. Try it again and you will see.

     

    Also when you tried Save for Web and Devices, you didn't bother to go in the Image Size tab and increase the pixel dimensions but left it at the default settings which give 72 pixels per each inch of your book which again is 576 by 360 pixels

     

    When you saved as  PDF you had no problems because it preserves your resolution independent vector objects and will look perfect at any zoom level.

     

    Learn about pixel dimensions (number of pixels per side in a image) and pixel density (pixels per inch or a unit commonly known as ppi).

     
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    May 31, 2012 12:16 PM   in reply to vividdesigngirl

    vividdesigngirl, I apologize if my message has offended you in any way. That was not my intention and I really wanted to help you, I was pretty much sure and still believe that what I said is the only ways to get the results you reported not because I'm judging you or anything like that but because I don't know how else one can get the results you reported. Also if it is not obvious English is not my native language and I may have failed in using it properly. Again apologies for anything that sounded offending.

     

    If you are still interested in my contribution to solving your problem, I would say that I don't understand well what you have done to the exported image as described in the first paragraph of you last reply. Using File > Export to JPG doesn't recognize artboards - they are ignored. The image is clipped by the bounding box of the objects. So if the bounding box of your book is 8x5 inches, regardless of the size of the artboard, and if you export with High selected for Depth, you will get 2400x1500 pixels for the book and not 576 by 360 pixels as you originally reported. If what you are saying is that your book image is in fact 2400x1500 pixels without any margins around and it still looks pixelated, this is entirely different problem than the one you initially reported by saying it is 576 by 360, and to solve it you have to provide additional information in that regard.

     

    edit: Oh, wait

    vividdesigngirl wrote:

     

    ...I accidently thought the question was how big my artboard was in pixels not my exported image. ...

    you mean you artboard is 576 by 360 as measured on the rulers in Illustrator? And thus your book which fits in it? OK, I get it. The pixels unints on the ruler and in the transform controls are used only for the default size if you use Save for Web and Devices but as I said, you can change them in the Image tab.

    If the exported image is in fact 2400x1500 pixels you should not see any pixelation. How are you bringing this image back to Illustrator. What happens if you right click on the file and choose open with Illustrator? Is it still pixelated?

     

    edit 2:

    if this happens with every image, can you please, create a simple document with a few simple round or skewed objects that show the pixelation, export as you usually do and share the illustrator and the exported jpg files by providing a link This is the best way to find the problem.

     
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    May 31, 2012 5:50 PM   in reply to vividdesigngirl

    Hi vividdesigngirl,

    I checked your files and I can't see anything out of ordinary. There is a difference between the raster image and its original vector version but this is how Illustrator renders raster images - it is not very good at that especially when it comes to high contrast hard edges. May be previously the nature of the artworks you had didn't have very hard edges or a combination of assigned resolution and zoom level didn't make the issue noticeable.

     

    To understand the issue try this simple test. Make sure you are at 100% zoom, type something with fully black text and make two copies next to it. For one of the copies choose Object > Rasterize and for Resolution choose Screen at 72 ppi, do the same for the other copy but for it choose High 300 ppi. At 100% zoom level you will see no difference in appearance between the vector and the copy that was rasterized at Screen but the copy rasterized at High 300 ppi will be rendered worse. At 100% zoom one pixel from the raster copy with a Screen resolution fits into one physical pixel of your monitor and this makes the perfect rendering possible. The vector object (text in this case) is always rasterized at screen resolution on the fly behind the scene for on screen rending at any zoom level and will always look perfect. While the other raster copy with the High 300 ppi at 100% zoom looks bad because it has to fit a group of its pixels into one monitor pixel or in other words it is interpolated by down sampling for on screen display.

     

    Now start to zoom in slowly. If you are on a PC or have the latest CS6 version on a mac you can click in the zoom field at the lower left of the document window and use the Up Arrow key on your keyboard to gradually increase the zoom by 1%, When you increase the zoom, the rasterized copy with Screen will start to look pixelated because each of its pixels will occupy more than one monitor pixel, while the other copy rasterized with High 300 ppi will not get worse but will never be perfect either except for one zoom level when its pixels fit the monitor pixels and after that it will start to look pixelated like the othe copy after 100% zoom. The zoom level zoom level at which the High 300 ppi copy will look perfect depends on the density of your monitor and is different for each monitor model.

     

    In any case for the final result do not rely on how Illustrator shows raster images. Instead at any time chose File > Save for Web and Devices and its image size tab, enter the final resolution then at 100% zoom  in the Save for Web window it will show you how really your image will look like at the end.

     
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  • Currently Being Moderated
    Jun 27, 2012 12:25 PM   in reply to vividdesigngirl

    Hi vividdesigngirl,

    I'm glad to be of help. Please, send me a private message with an e-mail where I can send you my e-mail to share the file. I can't send it directly to you using your e-mail from this forum because it is set to private.

     
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  • Currently Being Moderated
    May 30, 2013 5:43 PM   in reply to vividdesigngirl

    I was having the same trouble and was wondering if you ever figured out what was wrong?  I did some more looking after reading this fourm and found my answer and hope it might helps someone else that comes along.  In my Save For Web dialog I had somehow unselected the Type Optimized from the drop down box at the bottom of the Image Size tab in the window.  That fixed it for me.  Source of answer here: http://www.creativepro.com/article/illustrator-s-save-web-command

     
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  • Currently Being Moderated
    Aug 26, 2013 2:57 AM   in reply to vividdesigngirl

    Hi guys.

    I've got the same problem.

    I'm an advanced user of all the CS6 suite, so don't tell me to check the resolution of the exporting

    I'm using indesign cs6 and i'm working with high-quality pictures.

    When I put the picture in inDesign everything seems perfectly working, but when I export the high-quality pdf for printing (I use the PDF X-1a:2001 preset) the quality of some images goes incredibly down. I don't know why this happens. It never happened to me before but now there's no way to have good quality images in my pdf file.

     

    Here is the comparison between the view in InDesign where the quality is good and the result of the pdf.

    The logo in the middle is vectorial so don't care about that.

    the picture webhost did a downgrade of the quality, but that's minimal compared to the problem.

    http://s21.postimg.org/ym7gxz8lj/comparison.jpg

     

    Does anyone have an idea of how to solve this ****?

    I work as a professional designer and that's a big deal for me.

     

    Thanks in advance guys.

    V.

     
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    Aug 26, 2013 9:20 AM   in reply to borgatov87

    Are you applying any scaling in ID? What is the actual and effective resolution listed in the Links panel in ID?

     
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    Aug 27, 2013 12:49 AM   in reply to Larry G. Schneider

    Hi Larry, thanks for answering my help request.

    YES I'm scaling the 2 logos. Both are 300dpi grayscale .tiff in multiply in the original file but the effective PPI is 1150 for the first one and 650 for the third one.

    Do you think that could be a problem?

     
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  • Currently Being Moderated
    Aug 27, 2013 9:04 AM   in reply to borgatov87

    Try resizing them in Photoshop closer to the size they will be used. Both of those effective PPIs are too large and ID is trying to guess at what pixels to show.

     
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  • Currently Being Moderated
    Aug 29, 2013 12:05 AM   in reply to Larry G. Schneider

    Thanks Larry.
    I tried and it really works.

    What if I'm working in scale? I'm thinking about banners or things really big.

     
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  • Currently Being Moderated
    Aug 29, 2013 9:02 AM   in reply to borgatov87

    Then the PPI will reduce itself as you enlarge the print. For large banners and such you can get away with resolutions as low as 36 ppi for something viewed at 20+ feet.

     
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