We have a SharePoint 2010 environment that we make available to via HTTPS. Our default options for document libraries are to open docs in a browser, but recently our PDF’s have been causing an issue.
When directly clicking on the pdf when you are not on the corporate network, you get the error “There was an error opening this document. The filename, directory name, or volume label syntax is incorrect.” This does not occur when on the network.
Furthermore, we discovered a workaround that when you use the dropdown for the document and select View Properties and then click on the document link from that dialogue box the file will open without error.
Has anyone experienced this?