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  • Signlab – High Resolution Images – advice needed, please?

    Posted by James McHugh on August 10, 2015 at 3:28 pm

    Was wondering if anyone can help ?

    Been having a bit of a problem designing & setting up large format files before sending them to our suppliers to print.
    When we get a high resolution image from a designer and import it into signlab that say starts out as a 14mb PDF (then make any minor alterations required) and then publish it at High Resolution PDF again the file ends up over 400mb in size ? A major problem when trying to upload file to our printers server as it takes ages !!

    Have tried saving it lower resolution but some of the files end up printing with lines through them etc. The changes I make to image is just simply removing crop marks or file names. Nothing to enhance the image so cannot understand the jump in file size ?

    Any tips or advice would be greatly received !

    Thanks

    James

    Ray Wilcox replied 8 years, 8 months ago 3 Members · 3 Replies
  • 3 Replies
  • Jon Marshall

    Member
    August 10, 2015 at 4:14 pm

    It’s pretty much how it goes with Flexisign as well. Ideally you want to use Illustrator or similar when working with designers PDF’s.

  • Kevin Flowers

    Member
    August 10, 2015 at 6:13 pm

    Hi
    with Flexi don’t go by the size that it tells you on the export screen, eport it then click on the file properties and normally it will be a smaller file

    Kev

  • Ray Wilcox

    Member
    August 13, 2015 at 10:09 am

    I’ve had a play with this and the results are a bit confusing as it changes depending on the PDF that is imported. But generally speaking a PDF of say 14mb that contains images will become a much larger file when imported into Signlab as all of the images will become uncompressed as they become editable in Signlab. For example a 2Mb jpg uncompressed became a 17Mb image in Signlab and a 3Mb became 60Mb when uncompressed and i’m guessing this all depends on the resolution of the image and the compression applied when saving.
    I also did some PDF export tests using the 2Mb image from above, exported as Low, Meduim & High quality PDF’s from Signlab have the following file sizes, 359Kb, 4.2Mb & 17.6Mb, so it looks like an image exported as High res PDF is not being compressed at all.

    The results you get depend on the resolution of the images, by how much the original program compressed the images when creating the PDF and the quality of PDF exported from Signlab.

    Hope this helps a little. 😕

    Ray

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