I created a new forum thread for your question.
Please provide more information so that we can assist you.
Would you tell us which Reader you use? Is it the desktop Reader for a Windows or Mac computer or the mobile Reader for an iPad/iPhone or Android tablet/phone?
What is the version of Reader?
What is the operating system of your computer/mobile device?
Do all of the hyperlinks point to web pages?
I email the PDFs I create to about fifty different people. They are using tablets, mobiles, laptops and desktop computers, with different software to view the PDFs, and different OSs.
If it is relevant which software I use to create the PDFs - I create documents in Word (versions 2010 and 2013 on different versions of Windows on about four PC computers), and then Save As .PDF
I've had a higher success rate of hyperlinks working when I Save As PDF within Word, rather than Print to PDF.
All of the hyperlinks point to external webpages.
We would like to take a look at your PDF document to diagnose the cause of the problem.
Would you please share your PDF document with us (Adobe)?
I've sent you a separate forum message with the instructions on how to share your file with us.
Thank you for your help!
Just sent it for you to have a look at - thanks
We received your PDF document via email. Thank you!
...after clicking "allow (this website to open)" nothing happens.
We opened your PDF document in
- Acrobat Reader for iOS on an iPad
- Apple iBooks on an iPad
- Acrobat Reader DC on Windows and Mac computers
- Apple Preview on a Mac computer
The external web pages opened successfully. We did not find any problems with the hyperlinks in your PDF document.
Is it possible that the hyperlinks are blocked by Acrobat Reader (or other apps) for security reasons?
If the problem persists, would you please try to narrow down to a specific app (e.g. Acrobat Reader desktop or mobile), app version, browser app (e.g. Safari, IE, Chrome, Firefox) or operating system (e.g. Windows, Mac, iOS, Android)?