Here as well, PDF files open in browser takes between 30 seconds to 2 minutes depends on the browser.

Internet Explorer 9 is dramatically slow while opening the same in Chrome is faster, but yet really slow.

Adobe guys, please help ASAP!

Thanks

This issue started immidiately after installing the last update: 10.1.0.534

I'm working with Windows 7 Ultimate SP1

Thanks

We have 200 employees, the majority of which need to open and print hundreds of pdf documents a day.  They are all experiencing this severe slowness issue.  At first I thought it was a network or server issue, then an antivirus issue, but I have eliminated those as possibilities which led me to this forum via a google search for acrobat issues.

This is a very severe issue!  It has cut our employees' productivity in half and costing us $thousands per day!  Adobe need to address this immediately!

I will attempt the solution proposed on other forums of rolling back to version 9, but that will take considerable time to do on 200 workstations and laptops.  This update should have been much more thoroughly tested!

-RG

The same issue has occurred to me as well. I feel this is eminent at the opening of PDFs with Acrobat JavaScript.

I am wondering this happens in Adobe Reader 10.1 as well.

I also want Adobe to address this issue as soon as possible.

Same issue with X pro for me...very slow when opening documents..

Any update for this?

I can confirm that this is also an issue for me — ever since the recent update.

Not only is there this weird slowness, Acrobat X periodically crashes whereas it was previously stable.

Surely Adobe already knows about this stuff from the Improvement Program data it collects? What is being done about it?

I also experience that Acrobat X is really slow after the latest upgrade. I now have 10.1.0. Only remedy is to drag files to the program window instead of double-clicking. What is Adobe doing about this?? Also annoying with endless updates to fix safety issues in Acrobat.

Try this in Reader: Go to Edit / preferences / general - then uncheck  the box "Enable protected mode at startup" . My Reader X was doing the  same thing and this cured it straight away. I haven't tried it in Pro but see no reason why it wouldn't work there too. I'm not sure where that would be located in Pro.

I added "Priviledged locations" on my computer and the local network,which will be exempt from enhanced security. This seems to work. But I think there should be a default setting that only applies enhanced security to files that are opened from other places than the local network.

Edit/Preferences/Seurity(enhanced)

Try this in Reader: Go to Edit / preferences / general - then uncheck  the box "Enable protected mode at startup" .

Tried it, (yes I know I shouldn't but I made the pdf) this made no difference.

It's all right companies adding features, but when they stop the main program working...

Can anyone tell me an answer to my original query, can I kill this piece of junk (as no one from Adobe has an answer, yet!) and re install v9?

Is Acrobat X Pro optimised for multi core cpus? You could try checking the cpu Affinity in task manager. Make sure all cpu's are enabled and try adjusting the software priority there too. I wouldn't have thought processing PDF's would be too demanding though

Same problem here with version 10.1.0.534 from 6th of june 2011. Nothing works until now. The first document opens quickly, the next takes time. Went back to version 10.0.3 (via Windows system recovery), but then Acrobat crashed 10-15 seconds after opening the first file. We now re-installed our original CD-version 10.0.0 from january 2011, problem solved, so no more updates for us.

To Adobe: if you ask such a lot of money for your software this is something you should solve; at least react/inform your customers about the problem and offer a (temporary) solution. I keep my Foxit-reader installed, just in case.

"Edit/Preferences/Seurity(enhanced) AND...?"

And uncheck "Enable Enhanced Security." 

I'm using 10.1 Pro and was having the exact problem described (first document opened fine, but a second or third would take a good 20-30 seconds to open).  After disabling Enhanced Security, I can open 3-4 documents in a row without any slowdown. 

It really is a good thing (for Adobe) that Acrobat has no viable competition, because each version has been incrementally worse since version 7. 

It's the version of Office I was using, I was on 2000, Acrobat X is not compatible with this.  It's totally screwed my Printers folder, too.  I've upgraded to Office 2010, but I may need to reload XP sp3

Kathleen Tronsor

IT Systems Manager

Carolina Color Corporation

www.carolinacolor.com

704-637-7000

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I was able to test today with Acrobat Pro 10.1.0 on Win 7 Pro x64.

I am not seeing any slowness when opening subsequent PDF files with 1 already open.

As I posted earlier today, I do see this slowness when using 10.1.0 on XP Pro SP3.

jimmytecguy : If i wanted to spend more money on worthless software and have to learn yet another program,...I would consider it.

Peddle your trash somewhere else.

To fix the load delay.. remove any non functioning or slow Rights Management Servers from Security Settings. Document open triggers UI items to get enabled, which fetches the set of policies that you can apply on a document, and show them within the menu. Somehow this seems to happen each time a document is opened.