How and where did you find anything about disabling enhanced security and how did you find it? in what menu? Is it part of winxp or adobe? Please explain where on earth you found this option - have searched everywhere and cannot find it .
Most certainly NOT . It is most rude for adobe to come up with this and suggest people upgrade or use it when it made it MUCH WORSE and way to slow if it works at all. I wish there was a way to uninstall it and go back to a previous version but guess not. If anyone has discovered a way to uninstall the latest upgrade and go back to previous version PLEASE POST.
I had the same problem -- extremely frustrating -- but I found a solution that works for me.
Open up a pdf file, go to Edit, then click on Preferences in the pull-down. On the left, near the bottom, click on Security, then unclick the box near the top that says "verify signatures when the document is opened". Now all my pdf files open quickly, as they used to! I have no idea what this verify signatures thing is for but I'm ok without it.
Thanks but Actually I had already done that and also unchecked the enable enhanced security. Perhaps it did improve it somewhat but still is slower and more problem to use than prior version(s).Besides being too slow it seems usually to even open a 2nd or higher file when I push enter it does nothing and have to keep on pushing enter till it finally does it or messes up things so much I need to reboot or something - same thing with rt. clicking and going to open with adobe it ignores my command more often than not esp. when have other applications open whereas prior versions did not have this problem.
This is what screws me up. I have to disable this feature of WinXP to keep working when I have multiple PDF files opened.
However sometimes even if the standard "show common tasks in folders" is enabled, it works for a while before it stops working again.
It worked (satisfactorily) before the update.
So, either the update was not applied effectively or Adobe broke it with the new update trying to fix other things.
(anyone have problems with deleting single pages?)
1. Open Folder Ooptions in Control Panel.
- Click START and then click CONTROL PANEL
- Click APPEARANCE AND THEMES and then click FOLDER OPTIONS
2. On the GENERAL tab, under TASKS, click USE WINDOWS CLASSIC FOLDERS
(From Microsoft resources)
I think different people are experiencing different problems here on this thread but I can at least say from my point of view the issue remains with Pro 10.1.0 on XP SP3 opening the 1st PDF is fine but opening subsequent PDFs is almost always, but not always, preceded with an unusually long delay before they open. I did some brief testing with Pro 10.1.0 on Win7 x64 SP1 and did not reproduce the issue, but at least one other person on this thread says they have had it happen on Win7.
I have tried these things and none of them helped:
- Turned protected mode on. (It was off by default). Turned it back off. No difference either way
- Turned enhanced security off. No difference
(both of these are under edit > preferences > security (enhanced) )
- Uninstalled Adobe Reader. I had Reader 9.4.5 installed as well as Pro 10.1. After uninstalling that, no difference in this behavior.
- Temporarily disabled Symantec Endpoint Protection 11.0.6300.803. No difference in this behavior. Note there is a known bug with Adobe Reader 10 and Symantec Endpoint Protection versions lower than 11.0.6200 - Reader 10 will not run in Protected Mode.
What does help is to roll back to Acrobat Pro 10.0.0 When I do that (which so far I can only get to happen by uninstalling and reinstalling) I have yet to get the slowness to occur with 10.0.0
It seems like everything I do in Acrobat X is really slow compared to 9. I've only had it for about a month, but I'm getting really sick of it. Creating forms is brutal when I have to stare at a loading bar for 5 seconds everytime I drop a new field in there.
Please pleese pleeeze can someone tell me how to remove Acrobat reader X and replace it with
one that works Acrobat 9.
I'm tired of trying all of the helpful suggestions above, none of which have worked, but thanks anyway.
Acrobat, or Reader?
If Acrobat, then you should have the installation file or media. If not, you
will need to contact Adobe.
If Reader, you can download it from here:
I'm not sure if this has anything to do with it but.... having just checked my 'reliability monitor' (via control panel) - there is an warning mark right next to Acrobat X Pro with the message 'Unsuccessfil application reconfiguration'. I haven't asked Acrobat to do anything today so what ever the error is, it's done it off it's own back. (As you'll see from previous notes, i too am having issue's since the update. Using Windows 7 Ultimate SP1)
After all the discussion, I can't resist adding a little dig in the sense that your file are slow to open like the display in this forum. (OK, this goes way back to when the forum was changed over and the analogy is something I just could not resist!) Sorry for wasting space in this topic.
No solution to this problem yet? It's been months!!! Has anybody been in contact with Adobe? We can't be the only people on this earth with this problem!! My hair is getting grayer by each day and my ulcer is growing...
My Acrobat recently got updated to version 10.1.1 and now it opens pdf files without any delay. I would suggest all of you facing this problem to update your Acrobat to latest version (10.1.1) as soon as possible.
Regarding the ridiculously slow opening of PDF's in IE8 web browser (I know not OP's problem), it is still ridiculously slow with Acrobat 10.1.1 and Reader 10.1.1 installed.
If I uninstall Acrobat X and leave Reader (10.1.1) installed they open damn near instantaneously in IE.
Install Acrobat 10.1.0, PDF's can take up to 60 seconds before viewable.
Update to Acrobat 10.1.1, PDF's can take up to 60 seconds before viewable
Turn off all the addins in browser, no change.
Any definite fixes for this anyone .. please? Preferably one I can recommend to external clients as well as they are having the same issue viewing the PDF's off our website.
The problem for me also went away when I updated to v10.1.1. (for WinXP)
The problem is mostly about having thumbnail views applied to your folders and the setting (in XP) "show common operations in the same folder".
If I turned that feature off, the problem went away (with the previous version).
I can still sense some delay in opening of PDFs, with the new version, but nothing like before.
Yeah, I use Chrome myself and the builtin PDF viewer is instantaneous. Can't really tell our clients who work at hospitals etc to change their browser though (IT won't let them), or to turn off "Display in browser" in their Acrobat settings, or to right-click and save as.. to speed things up.
Would be better if Adobe could just tell us where the problem lies or even better .. fix it.
I have not seen anyone post full test results, so here is my testing:
Windows 7 x64
Internet Explorer 8
Adobe Acrobat X Pro
10.0.0 - Works
10.0.1 - Works
10.0.2 - Works
10.0.3 - Works
10.1.0 - Slow to load PDF Forms inside browser
10.1.1 - Slow to load PDF Forms inside browser
I have not found any Adobe Acrobat Preferences that will fix this either.
I'm using 6 cores and 12G ram, but this makes no difference: the first opening the document in Acrobat Pro is terribly slow. The bug is definitely in the cashing system. Acrobat has to read the whole file before you can access it. If you close a file and open it again Acrobat makes it instantly, because the file is in the cach already. Let's wait while the new caching process will be moved to background.
But l u c k i l y, free Adobe Reader doesn't consist the feature (yet :)). So you can install both applications in your system and read the documents quickly. Alternatively, one can move back to Acrobat 9.4.6, which was released the same day as the 10.1.1 (9/13/2011)
But the most important. It seems, that installing Adobe Reader changes the overall Adobe system behaviour. And now my Acrobat Pro 10.1.1 works OK and opens large files without any delay.
Check, whether this solution suits you.
Hey nzorn, maybe you can verify this for me:
When I RDP into computer it works instantly (ie. normally). If I'm sitting in front of it or VNC/DameWared it is ridiculously slow (can be over a minute). This made me think it is something to do with the video driver (god knows why, Adobe you're a champ. /sarc).
Updated driver to latest version (ATI Radeon HD2400XT), no luck. Used the onboard video (Intel Q45/Q43 Express Chipset), no luck.
DISABLED the driver (so computer reverts to stock VGA), PDF's load instantly! Enable the driver, back to square one.
ATI and Intel can't be blamed because 1. It works pre 10.1 and 2. They are totally different companies.
Please somebody from Adobe read this and fix this! We run breast cancer trials as a subsidiary for a University (VLK license) but don't have support logon details where we're situated. Surely it's more than just us and nzorn with this issue!
I can do some more testing when I have some free time. I am going live with Adobe Acrobat Pro 10.0.3 since it's working fine.
In the meantime I have filled out a bug report, but maybe others can do the same thing: https://www.adobe.com/cfusion/mmform/index.cfm?name=wishform
I solved the issue for myself by disabling the "preflight" plugins by moving the 3 files from the acrobat plugins folder (Preflight.api, Preflight.deu, Preflight.fra). More details about this can be found here: http://forums.adobe.com/message/3791427#3791427.
Not saying this is a solution, as I believe this to be a bug, but at least files are opening at the same speed as they were before this update.
*Also, after testing (once files were moved), I put them back in the folder, and even restarted, and it's still fast.
Apparently this isn't a priority for Adobe. But I noticed that recently it is taking FOREVER for me to open PDF documents that are on a network share. I am using Reader 10.1.1 and it is unusable. I went into Edit -> Preferences and disabled everything under Security and unchecked "Enable Protected Mode at startup" and it will open the first document fairly quickly now, but if I want to open 5 or 6 documents from the share, forget it. This is not an upgrade and Adobe, who IMHO does a really good job with software, really screwed the pooch on this one. I would like to downgrade to 10.0 but I can't seem to find it so I will end up downgrading all the way to Reader 9.4. I'm on Win7 x64 Ultimate, 4GB ram, Intel quad core at 3.0 GHz.
The original issue posted by lenahanson was fixed in Acrobat/Reader 10.1.1 and many people who responded to this thread also found the 10.1.1 update to fix their issues. However, from reading the latest responses there is still a few file opening performance issues/bugs.
So that Adobe can isolate the current/remaining issues people using Acrobat X 10.1.1 or Reader 10.1.1 are still having, can we have some fresh responses with additional details?
Are you still experiencing performance issues? Is your version of Adobe Acrobat X or Reader X (at least 10.1.1? If the answer to both questions is yes it would be helpful if you respond including as much the following information as you can:
Adobe definitely wants to address these issues and the more current relevant information we can provide the easier it will be to determine what problems remain.
it takes over 10 seconds to display a small 80kb dynamic PDF in 32 bit IE 8 on Win7 using adobe acrobat pro 10.1.1
several static PDFs in the same app render with sub-second speed in all browsers
the dynamic PDF renders with sub-second speed in all browsers except 32 bit IE using acrobat pro 10.1.1
the 64 bit IE 8 browser renders quickly
the desktop I am usig to reproduce the issue is Win 7 pro 64 bit with 6gb ram and dual Xeon 2.66
Here's our environment:
Thanks for your help.
I ran the same app locally and without SSL and was unable to reproduce the issue. Wonder if the issue has something to do with SSL + IE 8 32 bit + Adobe 10.1.1
also here are the HTML headers:
The headers of the dynamig report that is loading slowly over HTTPS look like this when loaded over HTTP
HTTP/1.1 200 OK
Date: Mon, 19 Dec 2011 21:18:56 GMT
The headers of the static PDFs that we are not having issues with look as follows when loaded over HTTP
HTTP/1.1 200 OK
Cache-Control: private, no-store, no-cache, must-revalidate
Date: Mon, 19 Dec 2011 21:25:19 GMT