PDF Book Compression

[Rodgers H]

Is compression of the PDF Book files possible? If so, what utilities work best? Or does compression lessen the quality of the book to make compression undesirable?

[mjashby]

Re: PDF Book Compression

Is compression of the PDF Book files possible? If so, what utilities work best? Or does compression lessen the quality of the book to make compression undesirable?

Yes, it's possible and you can do it in the Mac's Preview app. But, 'yes' it does generally reduce quality as the basic way to compress a PDF is to reduce DPI output settings, so you need to decide what level of compression gives you the most acceptable output, which may also depend how you want to use the PDF file.

There is also a substantial number of free online PDF compression services. Just search 'Compress PDF' in your browser.

Mervyn

[Frank]

Re: PDF Book Compression

When I open a multiple-page Reunion PDF book in the Preview app, I don't see tools to compress or change the dpi resolution.

[mjashby]

Re: PDF Book Compression

...when I open a multiple-page Reunion PDF book in the Preview app, I don't see tools to compress or change the dpi resolution.

To reduce PDF File size in Preview:

1. Open the PDF Book Report and choose File > Export...

2. Click the 'Quartz Filter' pop-up menu, then choose 'Reduce file size'

Just tried on a Text only Book Report produced from Reunion and file size was reduced from 3.7Mb to 239k. No serious degradation of text on screen but standard front and back graphics cover images were a little less sharp.

[Frank]

Re: PDF Book Compression

Thanks for correcting me.