A discussion about PDF/A documents can be found at: LuraDocument is a pricy Windows enterprise-server solution for generating highly compressed PDF/A (or ‘PDF archival') documents. The problem with the document in question is that it is actually a highly compressed PDF/A document- not a true PDF.Ī little sleuthing revealed it was created with LuraDocument PDF v2.28 emulating Acrbat version 1.5 (6.x).
But when opening this much larger file, I experienced no such slowdowns. I used Save As to create a copy, which was 24MB in size. In my experience, this usually produces a file that is a few times larger than the original file, but the viewing performance will improve considerably.Īs an example, I had slowdowns when viewing an 8MB PDF file. To speed things up, you can try saving a copy of the PDF file using Preview (File » Save As).
When viewing some large PDF files in Preview, performance can get pretty sluggish - lags when changing pages, zooming, etc.
