On Thursday, December 02, 2004 6:05 PM [GMT],
Leonard Daly <[EMAIL PROTECTED]> wrote:
>> Partial answers...
>>
>> At 06:19 AM 12/2/04, Paul Murphy wrote:
<snip />
>>> 2)Am I right in assuming that the a.pdf and b.pdf files have been
>>> accessed 217 and 156 times respectively (1 request per pdf page, 2
>>> pdf pages per file)?
>>
>> No. Hits = accessing a file. It does not matter how many pages that
>> file has. It does take time for Acrobat to render each page.
Acrobat can download parts of a .pdf document as a user scrolls through
it. So if I open a 6 page PDF file, Acrobat on my machine may make
multiple requests to the server as I scroll through the .PDF file.
I have no idea how or when Acrobat decided to make each separate
request - if I Search a .pdf document, I'd be surprised if Acrobat
requested each page individually, but I've never looked in my logs to
find out. (Off hand, I don't know if I have any .pdf files on my
servers).
>>> 3)Why does c.pdf show an odd number of requests if it has 2 pages?
>>
>> See #2. c.pdf has 1111 attempted accesses.
Not everyone reads the whole document - maybe only 500 people read the
whole document, sending 2 request each (if that's what Acrobat Reader
does) and 111 stopped after page 1? Or maybe some people were using a
version of Acrobat Reader that is configured to get the whole document,
instead of just getting a page at a time.
This is what the Help file in Acrobat Reader 5.0 says:
Enabling Fast Web View
With Fast Web View, the Web server sends only the requested page of
information to the user, not the entire PDF document. As a reader of the
PDF document, you do not have to do anything to make this happen; it is
communicated in the background between Acrobat Reader and the Web
server. If you want the entire PDF document to continue downloading in
the background while you view the first page of requested information,
be sure Allow Background Downloading is selected in the Web Browser
Options section of the preferences.
Or maybe some of them weren't use Acrobat Reader?
http://www.foxitsoftware.com/pdf/rd_intro.php is an alternative PDF
reader. I don't know if it handles partial loads.
Aengus
Aegnus,
Thanks for the information on the Acrobat reader. I should check my settings to see if the long time it takes Acrobat is due to file download, application startup, or rendering.
| Leonard Daly <[EMAIL PROTECTED]>
| Internet Consulting http://realism.com/
| e3D News Technical Editor http://e3dNews.com/
| X3D Author and Lecturer
| Member, Web3D Board of Directors
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