View the file once it opens within Adobe Reader. Use the viewing options from Adobe Reader's toolbar to zoom in, zoom out or perform various other actions while the document is open.

Use these free CHM file reader software and online tools to open and view Compiled HTML files (CHM) on a Windows PC.

Fix Adobe Acrobat Reader could not open PDF because it is either not a supported file type or because the file has been damaged error on PC.

Open PDF File on Windows Once you've decided on a native or alternative PDF reader to open your file and changed your Windows settings, locate the PDF file in File Explorer.

Download Word-Reader here Using ThinkFree This online-based word editor is similar to Google docs and allows you to open and view your .docx file with ease.

The new version of PDF Reader can open more PDF files. To be honest we haven’t encountered an instance where PDF Reader wouldn’t open a PDF file, but then again we don’t use PDFs too much.

A feature called Open Parameters within older versions of the Adobe Reader browser plug-in can be corrupted with malicious content.

Foxit Reader and PhantomPDF are plagued by several high-severity flaws that, if exploited, could enable remote code execution.

The software Google's browser uses to show PDF files has been proprietary for years, but now it's an open-source project called PDFium that others can scrutinize or use themselves.

Security researchers are warning users not to open PDFs from unknown sources in Adobe Reader after finding a PDF zero-day being exploited in the wild.