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.

Visit Adobe Acrobat Reader’s website and download the latest version of the reader. Use it to update your existing PDF reader and try to open the file again. If the issue persists, continue to ...

See what you can do to fix the problem quickly. Adobe Acrobat Reader could not open PDF Earlier, Acrobat products performed no checks on the extraneous bytes present before the %PDF-header.

Open the primary document that will become the foundation for the combined PDF in Adobe Acrobat. The primary document may already be a saved PDF file or it may be a different source file.

Click on “Finish” to finish installing Acrobat Reader DC. Make Adobe Acrobat Reader your default viewer for Windows Press the Window key + I on your keyboard to open Settings.

Need to edit a PDF document but don’t want to pay for the more expensive Adobe editors? You can add text to and sign a PDF with just the free Reader program.

Download free Acrobat Reader DC software, the only PDF viewer that lets you read, search, print, and interact with virtually any type of PDF file.

Download free Acrobat Reader DC software, the only PDF viewer that lets you read, search, print, and interact with virtually any type of PDF file.