Although the Portable Document Format data format (PDF) is omnipresent for a reason because it allows for the preservation of documents formatting in addition to other components because it allows for password security of documents.
But lets face it sometimes Portable Document Format files may be bloated, and something that ought to be 200k or less may be 1.2MB for no apparent reason, particularly if they’ve been generated in the OS level from something such as printing into a Portable Document Format, another file that has been converted into a Portable Document Format, or created with an application which simply does not offer any compression in any way.
This guide will show you how to decrease the file size of Portable Document Format files using tools included in Mac OS Preview. The diminishing of the Portable Document Format file size can be striking and very effective, so this guide should be of great aid should you need a decrease.
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source: The Guide Ops
Let’s learn how to decrease the file size of a Portable Document Format and get to it. The way to Reduce Portable Document Format File Size on Mac – Open the Portable Document Format file that You Want to Reduce the size for in Preview app – Pull down the File menu and also choose Export.
Save the new reduced version of the Portable Document Format as usual by hitting Save. – Just how much space you’ll save by using this file decrease filter varies considerably, depending upon the content of the Portable Document Format, the original application that created and saved the Portable Document Format and also if any filtering was applied to start with, among a wide range of other factors.
For originating documents which are entirely text, such as a resume or a Word document that’s been converted into a Portable Document Format (pdf) without any type of optimization, it could make a big difference, and you might see a file sized from 1MB diminishing down to under 100k.
Bear in mind which Quartz Filters are basically image processing filters, but unlike applications made for lossless image compression, the Portable Document Format document will be processed in such a way that might lead to lossy compression and also artifacts appearing on embedded imagery.
That’s not always desirable, that makes this trick best for Portable Document Format files which are heavy on text, simple charts, graphs, spreadsheets, or fundamental vector drawings, and not complete pictures where high image quality is desired.