Then you need to modify the guts of PoDoFo to support your model, since it's
not how it currently works.
From: xteo [mailto:x...@xteo.com]
Sent: Tuesday, February 08, 2011 8:58 AM
To: Leonard Rosenthol
Cc: podofo-users@lists.sourceforge.net
Subject: Re: [Podofo-users] Best Read only approch ?
Hi ,
it is ok for me to have one pages loaded while I am scanning it what I want to
avoid is if I am scanning a 700 pages documents like the PDF Spec for examples
to have the 700 pages loaded when I have finish iterating though all of them to
load at the Annotations .
would PdfPageTree ::ClearCache unload all the memory from the previously access
pages ?
I might see the performence hit of unloading the documents and loading it again
( every nth pages maybe ?)
I compile the PoDoFo library already so I could do slight modification if I
need to, I am just not sure where to start :)
Thanks a lot for your help
Damien
On 8 Feb 2011, at 12:58, Leonard Rosenthol wrote:
Everytime you request a page, the "base set" of its objects have to be loaded
and memory allocated for them. Nothing you can do about that.
IN THEORY, you could do some form of FIFO queue for older pages - but that
would require low-level plumbing down in PoDoFo...but doable.
Leonard
From: xteo [mailto:x...@xteo.com]
Sent: Tuesday, February 08, 2011 7:32 AM
To:
podofo-users@lists.sourceforge.net<mailto:podofo-users@lists.sourceforge.net>
Subject: [Podofo-users] Best Read only approch ?
Hi ,
in one of my uses of PoDoFo , I scan the documents for annotations.
I currently use a PdfMemDocument and get each PdfPage from the PdfPageTree.
as I scan all the pages the memory rises constantly ( reflecting that more data
is loaded from disk into memory )
and I want to limit the memory usage as much as possible.
I have try to call PdfPageTree ::ClearCache every 10 page I access hoping to
balance performance with Memory but it doesn't really look like it's helping.
any recommendation and what would be the optimal way to scan a documents for
all its annotations ?
Thanks .
Damien
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