There is a problem with Adobe Acrobat/Reader. If it is running please exit and try again. (0:521)
Although I have found other threads in this forum relating to this error - none of the fixes appear to work. I've not found precisely the same error number (0:521), might I need a different fix for this? Has anyone else had the same error?
Just to note, this appears to be an issue with Internet Explorer 8 on Windows 7 while viewing pdfs 'in-browser' i.e. using the plugin. Other versions of IE on other machines and FF on the same machine work fine on the same pdfs. It also works if you right click the pdf, download and view it in Acrobat Reader 'locally'.
Any help greatly appreciated, I'm stumped.
Just had a similar problem with Acrobat 8.2.6 but with error code 1014:1014. This fix worked for me:
In summary, open your adobe product and in the Edit drop menu open Preferences at the bottom. Click on Internet and then uncheck "Display PDF in browser". This forces the pdf to open locally.
The fact that FF works but not IE is puzzling. Try turning off "Protected Mode" in IE (which is distinct from "Protected Mode" in Reader). IE Protected mode is found in Internet Options -> Security. You'll have to Exit and relaunch IE after changing that.
I have Adobe Reader X on Windows 7 (64 bit) and encountered the same problem:
"There is a problem with Adobe Acrobat/Reader. If it is running, please exit and try again. (0:521)"
I followed another thread here: removed Adobe Reader X and installed Adobe Reader 9.4. It worked fine now. You can download Adobe Reader 9.4 here: ftp://ftp.adobe.com/pub/adobe/reader/win/9.x/9.4.0/en_US/
We were getting the same error on a Win 7 machine which had Acrobat 7 (running in compatability mode) and Reader X installed. When the user was trying to open the link from an email the error 'There is a problem with Adobe Acrobat.....(0:521) would appear and the pdf would not load.
Investigating the problem I can across an article to uncheck the option "Display PDF in browser" (in the application choose Edit -> Preferences -> Internet). Undertaking this procedure in Acrobat Reader X however, I could not uncheck this and the path the app was showing was for Acrobat 7!?!
Therefore, opened Acrobat 7 and undertook the same procedure. Unchecked the "Display PDF in browser" (in the application choose Edit -> Preferences -> Internet) which I was able to do, saved and closed the application.
Rechecked Acrobat X and the "Display PDF in browser" could be deselected and the path was now for ..\Reader 10.0\Reader\AcroRd32.exe
Retried the original email with the link to the pdf and it now opens without error.
Not too sure if this will help but just thought I would share.
Thank you for the tip. I have Adobe Reader X and had the same message but the error code 1074724867:3. I went to the apllication -> edit -> internet. I then
unclicked "Display PDF in browser". I now can open my online file I need. What does this do to make it work?
That cryptic error (0x400F0003) means the plug-in was not able to start up Reader (or Acrobat depending on which you have). That's not something I see very often; there are quite a number of reasons why that could be I suppose.
Turning off "Display PDF in the browser" means the browser now downloads the PDF and launches Reader as a separate application and gives it the PDF (I assume you noticed that a new window was opening with the PDF in it, and didn't have a URL bar, etc). That's a legitimate way to look at PDFs.
Do you have earlier versions of Reader or Acrobat installed on your system?
I also have the 1014:1014 issue
however, i cannot deselect the 'Load PDF in Browser' option. Its currently greay (disabled) and permanently checked so that I cannot even access it. Like its readonly.
Im using Adobe X.
What can I do?
For th 1014 there may be several issues.
First, exit the browser and exit Reader if it's running.
Then open the Task Manager (right-click in the Start Bar somewhere and select "Task Manager"). Under the "Processes" tab, if you see "AcroRd32.exe", select it and click "End Process". There may be more than one, and they may all disappear the first time you end process... or not. Repeat until they're gone.
Then launch Reader and go to Edit->Preferences.
Under the "General" tab, turn off "Enable Protected Mode" and OK all the alerts.
I believe Reader will now correctly show PDFs in the browser.
Thank you for the information on the 1074724867:3 error.I did it though the accessibility then change reading options and unclicked display PDF in brower and now it works fine.I was starting to go crazy figuring it out.You saved me alot of time and fustration.Thanks again
"Open" Adobe Reader X
Go to "EDIT"
Open "Preferences" Ctrl+K
Select Default PDF Handler
Select Adove Product
in this case Adove Reader X (10.1.1)
Do you want to allow bla bla bla YES
restart your system bla bla bla YES
and it work's at least for it did
had error 0:521 on IE9 Windows 7
You got it right on! I had the same problem and error code as described. Thank you, flippinecktucker for describing your system and problem in good detail so we can match up. Win7 x64 etc. and I have Adobe Acrobat 7.0 Standard version 7.1.0. Thank you gotcats? for being specific in your answer.