FileOptimizer 7.00.341 Beta 2

4.7 out of 5 stars 4.7 (49 votes)


Windows (All) / Open Source / 8,504 downloads

FileOptimizer is a lossless file size optimizer supporting AIR, APK, APNG APPX, CBZ, DOCX, GIF, GZ, EPUB, ICO, JAR, JPEG, MNG, MPP, PNG, PPTX, PDF, PUB, SWF, TIF, VSD, XAP, XLSX, and ZIP file formats among others.

Reviews of FileOptimizer

  1. 5 out of 5 stars

    Reviewing 7.00.328 Beta 1 (Sep 24, 2014)

    love this!

  2. 4 out of 5 stars

    Reviewing 5.90.267 (Mar 11, 2014)

    right on

  3. 4 out of 5 stars

    Reviewing 5.90.267 (Feb 17, 2014)

    4 stars

  4. 4 out of 5 stars

    Reviewing 5.90.267 (Jan 29, 2014)

    great tool. a must have for bulk file optimizing!

  5. 3 out of 5 stars

    Reviewing 5.00.213 (Feb 20, 2013)

    This is a nice bulk file optimzier tool, it really does slim down and optimize files. However it has 2 critical flaws which needs to be fixed.

    Things that could be improved:

    1.) The default setting is to remove metadata info. So for example on JPG files, the program strips out critical pieces of Exif data from JPG files:

    exif-camera (date picture was taken)
    exif-origin (camera f-stop/exposure/iso)

    This is critical because if you want to rename your JPG files based on "date taken", it's stripped out and won't work.

    Under "options" there is a checkbox "copy metadata". I recommend you enable it for all applicable file extensions. This really should be enabled by default.

    2.) There is no "abort" or "pause" button. You have to close out of the program to cancel operations. Understandable as it uses multiple command line operations/plugins, but it'd be nice if it was possible to abort.

    Other considerations:

    PDF/PNG/EXE compression compression is slow, especially on dual core systems (YMMV) sometimes not worth the effort considering most PDF/PNG/EXE files won't compress much further.

    Keep in mind during processing, the program places originals in your recycle bin. So if you process 1 gb of data, it takes up 2gb of space (until you empty recycle bin)

    In some cases EXE files also do self integrity checks on itself and related DLL files. Some cases it fails to run after compression. One example is WinWGetPortable, which failed NSIS self integrity check after compression of both EXE and DLL files.


    On a sample JPG photo created from a Canon EOS 60D (18 megapixels) it shrunk down the file size from 5.95 MB to 5.88 MB with no difference in picture quality, even zoomed up close. True to it's stated "lossless" description.

    On a sample PDF file, by default it downconverts to 150DPI, so images inside will slightly change when viewed close. Setting to "prepress 300DPI" should make it virtually exact.


    Good program for squeezing every last drop of space from files, just make sure to backup first, exclude certain program directories, enable "copy metadata" for all extensions, enable "keep file attributes", and change PDF DPI to "prepress 300" under program options.

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