Leonard,
Do you know at which version of the specification did linearization become a
feature of PDF?
Thank you so much.
Youssef Eldakar
Bibliotheca Alexandrina
-----Original Message-----
From: Leonard Rosenthol [mailto:[EMAIL PROTECTED]
Sent: Wed 5/25/2005 5:43 PM
To: Youssef Eldakar; [EMAIL PROTECTED]
Cc:
Subject: Re: [iText-questions] Page-by-Page Download
At 10:25 AM 5/25/2005, Youssef Eldakar wrote:
>When one clicks on a link to a PDF in the Web browser, does Adobe
Reader
>download the whole PDF before it is possible to view it, or does it
>download only the pages the user navigates to?
>
Depends on three things.
First, is the PDF "linearized". Called "Fast Web View
Enabled" in
the Acrobat UI, this is a way to restructure a PDF to make it possible
to
"byte serve" it. If a PDF is not linearized, it MUST be downloaded in
its
entirety before viewing.
Second, the web server support byte serving. This is a
feature of
http/1.1 and therefore should be standard on any but the dumbest web
servers.
Third, the user must have the "download pages in background"
option enabled in Acrobat (and be using Acrobat and NOT some 3rd party
viewer). This option is enabled by default, but a user may choose to
turn
it off.
If all three criteria are met - then the file can/is
downloaded on
demand.
Leonard
---------------------------------------------------------------------------
Leonard Rosenthol <mailto:[EMAIL PROTECTED]>
Chief Technical Officer <http://www.pdfsages.com>
PDF Sages, Inc. 215-938-7080 (voice)
215-938-0880 (fax)
