What is wrong with this pdf? Can not scroll down

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balabi
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What is wrong with this pdf? Can not scroll down

Post by balabi » Sat Oct 14, 2017 11:10 am

Hello, everyone!
I encountered a strange pdf (download here https://quickfileshare.org/5AZ/Introduc ... hanics.pdf )
If you open this pdf with pdf xchange editor. At first, off course, it will at the cover page.Then you start scrolling down, but you will find that you get stuck at page 3 and can not scroll down. The same thing will happen, if click bookmark "chapter 1", and then can not scroll down either.
I tried to open this pdf with sumatra pdf, and it has no such problem.
What is wrong? Is it the problem of pdf xchange editor? Or this pdf? How to solve this?

best regards.
Last edited by balabi on Sat Oct 14, 2017 11:18 am, edited 1 time in total.

balabi
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Re: What is wrong with this pdf? Can not scroll down

Post by balabi » Sat Oct 14, 2017 11:18 am

Sorry, previous link is dead. pdf can be downloaded here https://quickfileshare.org/5AZ/Introduc ... hanics.pdf

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Bhikkhu Pesala
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Re: What is wrong with this pdf? Can not scroll down

Post by Bhikkhu Pesala » Sun Oct 15, 2017 7:46 am

That was a right PITA to download.

Use filebin.net for free file sharing up to 100 Mbytes.

Introduction to Classical Mechanics

I have no problem scrolling the PDF file in PDF-XChange.
Windows 10 64-bit • AMD A10-6800K, 8 Gbyte RAM
Review: http://www.softerviews.org/PDF-XChange.html

HaPe
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Re: What is wrong with this pdf? Can not scroll down

Post by HaPe » Sun Oct 15, 2017 12:31 pm

Bhikkhu Pesala wrote:I have no problem scrolling the PDF file in PDF-XChange.
Downloaded the file and experience the same strange behavior as @balabi
I am still using the older Build 322.5 ,so maybe an update to the latest version will fix @balabi's problem.

HaPe

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Ovg
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Re: What is wrong with this pdf? Can not scroll down

Post by Ovg » Sun Oct 15, 2017 3:44 pm

I have the same problem with this file and i have the latest version of PDF-XChange Editor Plus - 6.0.322.7
It's impossible to lead us astray for we don't care even to choose the way.
PDF-XChange PRO, 8.0 (Build 343.0) / W7 x64 SP1

HaPe
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Re: What is wrong with this pdf? Can not scroll down

Post by HaPe » Sun Oct 15, 2017 4:09 pm

Adobe Acrobat Reader DC is not much better. Looks like there is something wrong with the file itself

HaPe

Timur Born
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Re: What is wrong with this pdf? Can not scroll down

Post by Timur Born » Sun Oct 15, 2017 8:31 pm

The "Introduction" (iii) page is the culprit. Use thumbnail view and navigate to the next page after that (iv), you need to click twice on it to jump over the offending page. Or just enter the page number in the page navigation pane. Once you are there you can scroll through all the rest without problems.

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Tracker Supp-Stefan
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Re: What is wrong with this pdf? Can not scroll down

Post by Tracker Supp-Stefan » Mon Oct 16, 2017 9:51 am

Hi All,

Thanks for being so active in this topic!
In the original view (Single page, non continuous) - the problematic page does "blink" a couple times, but using the mouse scroll wheel - I did manage to get to the next and consecutive pages. When I switched to single page continuous however - the problem is much more obvious.
It is caused by page level java script:
script.png
So it is not something we are doing wrong - we are just honouring the scripts that are already in the file!
Please contact the document authors and ask them to check this file and make sure that such scripts that get you back to the same page when you navigate out of it are not used.

Cheers,
Stefan

balabi
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Re: What is wrong with this pdf? Can not scroll down

Post by balabi » Sat Oct 21, 2017 1:22 pm

Tracker Supp-Stefan wrote:Hi All,

Thanks for being so active in this topic!
In the original view (Single page, non continuous) - the problematic page does "blink" a couple times, but using the mouse scroll wheel - I did manage to get to the next and consecutive pages. When I switched to single page continuous however - the problem is much more obvious.
It is caused by page level java script:
script.png
So it is not something we are doing wrong - we are just honouring the scripts that are already in the file!
Please contact the document authors and ask them to check this file and make sure that such scripts that get you back to the same page when you navigate out of it are not used.

Cheers,
Stefan
Thank you so much! Is possible to purge this pdf with pdf xchange editor? If not, is there other ways instead of contacting the document author?

Willy Van Nuffel
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Re: What is wrong with this pdf? Can not scroll down

Post by Willy Van Nuffel » Sun Oct 22, 2017 8:08 am

You can remove the problem by removing the Javascripts that are add to specific pages 2, 3 and 5 in the PDF document:
- open the PDF in PDF-XChange Editor
- activate the Thumbnails pane (View > Thumbnails)
- activate the Properties pane (View > Other panes > Properties pane)
- now, when you click onto the thumbnail of one of the pages 2, 3 or 5, you will see a script for Page Open and Page Close in the Properties pane
- by clicking the three points (...) and then click onto the page instructions + Remove + OK, you can remove the scripts

Best regards.

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Will - Tracker Supp
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Re: What is wrong with this pdf? Can not scroll down

Post by Will - Tracker Supp » Sun Oct 22, 2017 6:33 pm

As always, the assist is much appreciated Willy :D
If posting files to this forum, you must archive the files to a ZIP, RAR or 7z file or they will not be uploaded.
Thank you.

Best regards

Will Travaglini
Tracker Support (Europe)
Tracker Software Products Ltd.
http://www.tracker-software.com

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