OPTIONAL : click on the “+”-button again to create another new Quartz-filter, call it “Reduce File Size 120dpi” and repeat the above procedure, just set “Resolution:” to “120 dpi/inch” this time (…and you can even repeat this for other resolutions like 100 dpi/inch)ġ0- now, in the Finder, press the ALT-key on your keyboard and select “Go” from the upper menu bar, in the pulldown and extra (ghost) folder called “Library” will appear, click on it and in the Finder window that opens, select the “Filters” folder (there you will see the Quartz-filters you’ve just created in ColorSync Utility)ġ1- then, in the Finder open another (new) Finder window and open the (regular) “Filters” folder that is in the “Library” folder in the “System” folder also (there you will see all the standard Quartz-filters available throughout OSX)ġ2- put both of these Finder windows side-by-side, then select the Quartz-filter files you’ve custom created, and drag them into the other “Library” folder (the one in the “System” folder)ġ3- then you get an authentication warning message that you need administrator rights to add anything into the folder, so type your administrator password and the custom Quartz-filter files will be moved into the System’s “Filters” folder
.png "mac pdf reduce file size")
Yes there is, but unfortunately it’s rather tricky to set up at first (since there is still no option in Preview, nor in “Save as PDF”, to adjust the PDF-output on the fly… and on top of that : there is a bug in the latest versions of OSX that prevents self-made Quartz-filters from ColorSync Utility to be accessible throughout OSX…)ġ- open the ColorSync Utility that is in the Utilities folder within the Applications folderĢ- if no window opens, click on File –> New WindowĤ- then click on the “+”-button in the bottom-left corner to create a new Quartz-filterĥ- type “Reduce File Size 75dpi”, then click on the small round button (with the small white triangle in it) at the end of the lineĦ- from the pulldown menu select “Add Image Effects Component > Color Image Sampling” and now some adjusting options appear, leave most of them as-is, only at “Resolution:” type “75 pixels/inch” (so leave the other options empty and leave “Quality:” at “High”)ħ- repeat this last step, but this time select “Add Image Effects Component > Grey Image Sampling” from the pulldown menu (so set “Resolution:” to “75 pixels/inch” here also)Ĩ- tripple-check to make sure that the name of the Quartz-filter is “Reduce File Size 75dpi” and the “Resolution:” is set to “75 dpi/inch” at both instances… if that’s not the case : correct it before continuing (just retype at the correct spot) Isn’t there any simple way to get a readable PDF of about 5MB or so ? So I tried to use various ways of saving (or exporting) as PDF from within Preview, but they all end up with the same oversized 39MB file… except for one : the “Reduced File Size” filter from the “Export” option gives me a 240kB file that turns out to be completely unreadable… I know the probable cause, because some of the pages are entire A4-size pictures scanned as JPEG at 300dpi… I have created a PDF of 4 pages in the Preview app, but I can’t eMail it to anyone because it turns out to be a 39MB file…
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