In the Safari app on your Mac, click the link to a PDF. Move the pointer to the bottom center of the browser window to see controls. To stop viewing the PDF, click the Back button in the toolbar. See also Choose an app to open a file on Mac Change General preferences in Safari on Mac Save a document as a PDF on Mac View PDFs and images in Full steps. Fix 2. Repair Your Corrupted PDF Files with a file repair tool. Use a file repair tool to fix corrupted or damaged PDF. EaseUS data recovery and repair software can scan and repair corrupted PDF documents Full steps. Fix 3. Use Another PDF Reader Program or Re-transfer Files. Choose Apple > System Preferences. Open the Print & Fax preference panel. Select the Printing tab to see the printers list. Select Adobe PDF 9.0. Click the minus (-) button. The Save As Adobe PDF command appears in the PDF menu. To solve common PDF-display issues, follow the instructions in the order they appear: Update Reader or Acrobat, fix PDF issues, check browser settings, and repair or reinstall Reader or Acrobat. Update Reader or Acrobat Adobe releases free security updates quarterly. Make sure you update your version of Reader or Acrobat to the latest release. Check out the steps below. On Windows. Locate your PDF file and right-click on it. Select Open With > Choose another app. Select Adobe Acrobat DC and click on Always use this app to open PDF files box. Hit on the OK button. On Mac. Select the PDF file and right-click on it. Choose Open With > Other. Here's how to do it: Press Win + R to open the Run command. Type Regedit and tap Enter to open Registry Editor. Paste the following address into the Registry Editor. ComputerHKEY_LOCAL_MACHINESOFTWAREPoliciesAdobeAdobe AcrobatDCFeatureLockDown Right-click and navigate to New > DWORD Value. Rename the file to "bProtectedMode." If you can still open your Adobe, go to File>Properties>Securities>Security Method. If it shows password security, your PDF is restricted from printing, editing or copying, and you need to unlock the file for printing. Use the PDF Password Remover to remove password protection, then continue to print the PDF with your printer. Launch Kernel PDF Repair and click on Select File (s) button to locate and add the corrupt PDF files. Once the files are added, review the list in case any unwanted files are added to the interface. You can select the unnecessary files and click the Remove Files (s) button to remove them from the list. Click Repair to initiate the repair process. Leave Preview as your default PDF application. When you double-click a PDF file, it will open in Preivew. When you need to open a PDF file in another application such as PDFpen or Acrobat, simply right-click (Ctrl+click) the file, go to "Open With" and then select PDFpen or Acrobat from the list.