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how to reduce a file size of existing PDF file?

Jul 19, 2011 6:44 PM

The initial file was generated in illustrator on Mac.

need to upload the converted PDF file from PC, no original fonts are available.

current file is 108 kb, need to go down 100kb.

What to do?


Also, I know that was asked hundred times, but please share a hint how to reduce scanned files - jpg or photoshop pdf into sendable document (under 1 MB)


Thanks in advance,


  • Currently Being Moderated
    Jul 19, 2011 7:07 PM   in reply to tufelka

    You need to run the PDF optimizer. Where it is located depends upon the version of Acrobat you are using.

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  • Currently Being Moderated
    Jul 20, 2011 1:25 AM   in reply to tufelka
    if so, it is AcrobatXPro, File, Save AS: optimized PDF, agreed to the given options in optimizer, ran it, nothing changed

    Try different options of the optimizer.

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  • Currently Being Moderated
    Jul 20, 2011 6:07 AM   in reply to tufelka

    You are fighting issues with JPegs and the amount of compression that can be done. You might find a graphic package more useful in reducing the size. If they are B&W scans, then you will often find the scanner still sends it as a 24-bit color file. Gray scale helps a lot (sometimes B&W does not look all that great, depending on the use of the pixel density). Keep in mind that a 300 dpi B&W image with no compression is 15MB. You might be more successful scanning to a TIFF file, modifying the file in a graphics package (IrfanView or PhotoShop would probably do) to get the size image you want, and then creating the PDF. If the scan is meant to be text, then you could use ClearScan OCR to reduce the size by replacing many elements by actual fonts.


    Bottom line, the ability to compress depends on the content, the color resolution needed, and such.

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