Question about Dell 946 All-In-One InkJet Printer

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When scanning to pdf, files are huge compared to other scanners. it is not a resolution issue

How do I reduce the pdf file size when I scan?

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Use the PDF Optimizer
By selecting Advanced > PDF Optimizer > Audit Space Usage, you can find out which elements in your PDF (fonts? images?) are taking up the most space and make changes accordingly.

Posted on Oct 10, 2008

  • 2 more comments 
  • Priya darshan Oct 10, 2008

    Most PDF users can tell you, the main factors
    affecting the size of a PDF are image resolution, image type (bitmap or
    vector), fonts and how they're embedded, PDF version and the level of
    If you're comfortable manipulating these elements in a PDF, you're off to a good start.

    Below are a few tips to help you whip your heavyweights into bantam class performers.

    Use the Save As Command

    This is Adobe's No. 1 suggestion for reducing the sizes of your PDFs.
    When you make changes to your PDF, select Save As to overwrite the
    entire PDF. Otherwise, if you just click Save, changes are appended to
    your file, and you'll notice a slow and steady accretion of kilobytes.

    Named Destinations: Use 'em or Lose 'em
    destinations are markers that identify locations in a PDF file. Many
    PDF authors use named destinations for one document when they plan to
    link a second PDF file to a specific point in the first doc. (It's
    actually possible to deep link to a PDF file without named
    destinations. See this article for more info.) Unfortunately, every ten
    or so named destinations account for 1KB of file size. So if you don't
    need em, don't use em.

    Use the PDF Optimizer
    By selecting Advanced > PDF
    Optimizer > Audit Space Usage, you can find out which elements in
    your PDF (fonts? images?) are taking up the most space and make changes

    Manage your graphics
    Graphics are always a big
    problem when optimizing a PDF for size. First and foremost, use
    vector-based graphics whenever possible. Vector-based graphics scale
    perfectly, look better and take up less space than their GIF

    If you have to insert a graphic as a bitmap, prepare it for
    maximum compression and minimum dimensions. Don't compress the graphic
    beforehand, because distilling them in the PDF may cause the creation
    of noticeable artifacts in the image.

    To tinker with the image compression quality to size ratios,
    select Advanced > PDF Optimizer, and on the images tab select
    compression options for color, grayscale, and monochrome images. Or,
    select Enable Adaptive Compression and drag the slider to balance file
    size and quality.

    Manage Your Color
    If you're making a PDF for the Web
    and/or if you're not concerned about printing colors, use the RGB color
    space. RGB has one less data channel than CMYK, so your files will be
    that much smaller.

    Minimize Fonts
    Fonts take up a lot of space. If
    possible, don't embed your fonts. But if your document requires a
    certain look (and most do), keep the number of fonts to a minimum.
    Using subsetted fonts that only include the glyphs actually used will
    go a long way toward minimizing font size bloat.

    Watch out for version bloat
    Acrobat 5 (PDF version
    1.4) introduced JBIG2 (Joint Bilevel Image Experts Group) compression,
    which is superior to the CCITT or Zip algorithms that previous versions
    used when compressing scanned monochromatic copy. Most PDF users have
    made the switch to newer versions of Acrobat, but if you're still using
    an old copy, it may be time to make the switch.

  • Priya darshan Oct 10, 2008

    The two biggest things to look at when you want to reduce the size
    of PDF files are removing objects and downsampling/shrinking the images
    it contains.
    1. Re-create the PDF to reduce PDF file size
    A handy trick for reducing PDF file size is to re-create or ‘re-fry’
    your PDF. By creating the PDF again you can strip out plenty of
    unwanted objects, remove tags, and compress images further. You can do
    this with any tool that supports ‘print to PDF’ functionality. For this
    trick I’ll use the free free PrimoPDF print driver.

    1. Open the PDF file

    2. Open the Print dialog

    3. Select PrimoPDF from the list of printers

    4. On the PrimoPDF dialog, click eBooks. (Or to manually control the level of downsampling, choose Custom.)

    5. Click OK.

    2. Reduce PDF file size with ‘Save As’
    If you use a PDF editor such as Nitro PDF Professional
    or Adobe Acrobat you can make use of the ‘Save As’ functionality to
    trim some fat off your PDF files. Chris Dahl explained it succinctly in
    a recent post:

    PDF files have something that is called incremental
    updates, where any changes that you make to a document is appended to
    the end of the file without doing a complete rewrite. This is why the
    Save feature is much faster than a Save As, and also why PDF files
    saved this way can be large. The Save As feature will rewrite the
    entire file and provide you with a smaller file size.

    So, to shrink the PDF, do the following:

    1. Open the PDF in your PDF editor

    2. In Nitro PDF Professional, go to Nitro PDF Button > Save As. In Acrobat, go to File > Save As.

    3. Remove unwanted objects
    PDF files can contain a bunch of different objects, including
    bookmarks, links, annotations, form fields, JavaScript, Named
    Destinations and embedded fonts — all of which can be removed from an
    existing PDF file. Like tip two it requires a PDF editing tool such as Nitro PDF Professional or Adobe Acrobat.

    1. Open the PDF in your PDF editor

    2. In Nitro PDF Professional, go to Nitro PDF Button > Prepare > Optimize Document. In Acrobat 8, go to Advanced > PDF Optimizer.

    3. Choose the objects to remove

    4. Click OK

    4. Shrink all images in PDF files
    For PDF files that contain many images, downsampling all of them can make a noticeable difference.

    1. Open the PDF in your PDF editor

    2. In Nitro PDF Professional, go to Nitro PDF Button > Prepare > Optimize Document. In Acrobat 8, go to Advanced > PDF Optimizer.

    3. In Nitro PDF Professional, use the slider to select the level of downsampling. In Acrobat 8, in the images tab, specify the level of downsampling.

    5. Shrink individual images in PDF files
    If you want more granular control when downsampling you can shrink
    images one at a time and then view the result immediately. This trick
    requires Nitro PDF Professional (Adobe Acrobat doesn’t include the functionality).

    1. Open the PDF file

    2. Select the Edit Text & images tool (Ctrl+E)

    3. Double-click on an image

    4. In the Format ribbon tab, click Resolution, and then choose the level of downsampling to apply.

  • Priya darshan Oct 10, 2008

    For more information click on the blue coloured links which i have highlighted in my solution.

  • Priya darshan Oct 10, 2008

    You can also click on the below link for more help:



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Scanned documents' size is too large (the least I got was 600kb), how can I scan a document to a PDF with the normal size of 200kb?

You need to install a PDF writer program first. There are quite a few freeware PDF writer programs on the Internet you can download one such as CutePDF.
Scan your document the click on File - Print and select the PDF writer as the printer device. Then name and save the PDF file.

Feb 09, 2011 | HP Scanjet 5590 Flatbed Scanner

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When scanning in the pdf mode , i get a " get disk free space error "

Reduce the scan resolution before trying to scan in pdf mode or the saved file size will be far too large for your limited hard drive space.

Aug 17, 2010 | Canon CanoScan LiDE 70 Flatbed Scanner

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See the manual for X9350 on page 119.

The software application must be used for saving files to a specific format that you can select from the menu on the computer.

Standard scans are often saved as bitmap with the extension .bmp .
Select another file format like jpeg with the extension .jpg or .jpeg, when you want to view the scans in photoview afterwards.

Another option is to save the file in a format that can be read with Adobe Reader, selecting .pdf format.

A last option is to reduce your file size, changing the scan settings:
( I wouldn't advise; this can result in unclear copies ):
Advanced scan settings can be changed on the computer as well:
See reducing e.g. "scan resolution" and "color depth" on page 120.

Use the link support for Lexmark 9300 series for more help.

Sep 22, 2009 | Lexmark Office Equipment & Supplies

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u can make it small by reduce its resolution

Jun 15, 2009 | HP ScanJet 2400 Flatbed Scanner

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PDF Files When Scanning with X4270

If you can reduce your scan resolution (e.g. 150 DPI instead of 300 DPI) or color depth (scan in black and white instead of color) it will result in a smaller PDF.


Feb 25, 2009 | Lexmark X4270 All-in-One Multifunction...

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Scanning docs & size of pdf files on Mac w/HP l7680 All-in-one

The scanner produces a "picture" of the document, much as if you laid it flat on a table and took a picture of it with your digital camera. If you did this, your .jpg from the camera would be several hundred K at a minimum - comparable to the file size off the scanner. That's why the file is so big, it contains a picture and not text data - even though it's still a .jpg file.
If you reduce the scan resolution you will save space, but at the expense of legibility of the document image. To get it down to the smallest possible size, you will need to run the scanned image through OCR ( Optical Character Recognition ) into a Word document for example, and then print it out to a .pdf file. If you have a clean source document with few graphics this isn't as difficult as it may seem. Microsoft Office has an excellent OCR process known as Document Imaging. You need to carefully proof read the result but with a clean input Document Imaging is amazingly accurate in Office 2007.
In short, there is no easy solution to your problem.

Dec 30, 2008 | HP Officejet Pro L7680 All-In-One Printer

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Saving a document as a pdf

JPEG gives small size outputs as compare uncompressed TIFF. This is probabbly the best for color. Try reducing the resolution to 150-300 dpi.

S. Mohan, Chennai, India

Nov 21, 2008 | Office Equipment & Supplies

1 Answer

Huge pdf files

Try scanning a "photo" to file and using the advanced scan options to set a lower DPI. Then from the Library view you can convert that 'photo' (of a document) to PDF.


Sep 05, 2008 | Lexmark X7350 All-In-One InkJet Printer

1 Answer

Scan images file size seems very large

That entirely depends on your scan settings. The resolution has a huge impact on file size - doubling the resolution from, say. 150dpi to 300dpi actually quadruples your file size. That being said, your scans are probably saved as BMPs. If you scan to Paint or a proprietary image editor (like Photoshop), then you can save in a compressed format like JPG or PNG and reduce the file size some more.

Bottom line - if you're scanning a full size (8.5x11) page, then less than 2MB per page is pretty decent, especially if the file is a BMP. If these are 4x6 photos, then it's still not bad if you're using a resolution like 300dpi. My digital camera takes photos at 5megapixels and the files are often 1-2MB each, and those are just photos.

Jul 08, 2008 | Lexmark X7350 All-In-One InkJet Printer

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