I performed a fresh install of 4.3.5 and am receiving this error message when I try to open a pdf file:

"There was an error opening this document.  The file is damaged and could not be repaired."

The error occurs whether I attempt to open it in a browser or download it and open it. 

I have seen messages indicating this is the result of a bug in Acrobat Reader and that I need to update to the latest version (7.0.8), yet I don't receive this error when veiwing or downloading pdf files fom a 4.0.2 instance i am running.  I still receive the error after updating and only on my 4.3.5 instance.

I have seen suggestions that the the 'Display PDF in Browser' option needs to be unchecked.  Both settings still yield the error.  I performed reboots.

I've also seen an suggestion to adjust a cache setting in the web.config file.  I tried this and still receive the error.

Any ideas?  My docs section is the most utilized portion of my site and I have verything in .pdf format.  Is there a 3rd party simple docs module similar to the included module.  I don't need the complex features of the most of the ones I seen on Snowcovered.  Can I uninstall and revert to previous version of the docs module?

Any help is greatly appreciated.

IN DNN V 4.3.5, there are issues regarding file syncronization and a security related one as well, therefore I recoomend to upgrade ASAP. Afterwards do a recursive file sync in the file manager and check again.

---

Cheers from Germany,
Sebastian Leupold

   

Speed up your DNN Websites with TurboDNN