Hi, I noticed with PostgreSQL 9.2.x releases that their documentation file in PDF (US) format took a considerable time longer to open using xpdf compared with the 9.1, and earlier PDF files I had.
With Pg 9.3.x I see the same, so I started to wonder and noticed that the currently available 9.1 PDF on their site[1] advertises a much smaller file than what I have on my local drive: 6.0 MB vs 8.7M respectively. I grabbed the smaller 9.1 document, and it too takes a long time to open: Opening the (smaller) 6M postgresql-9.1-US.pdf (version 9.1.13) takes 49.54s.[2] Opening the (larger) 8.7M postgresql-9.1-US.pdf (version 9.1.3) takes 1.95s.[2] On a MacBook Pro all documents open so quickly it is difficult to time them. I am not sure if this is due to some sinister caching OS X uses or simply a better document parsing in Preview (and of course, a faster CPU). Does anyone (with PDF knowledge) know if this is due to some compression being used in generating these documents? Obvious guess due to size shrink. Last update to xpdf was in August 2011, so I'm not sure if author would be interested in this report, I will forward a copy of this message to them anyway. --patrick [1] http://www.postgresql.org/docs/manuals/ [2] cpu0: AMD E-350 Processor, 1597.54 MHz
