Is it possible to have a PDF file open at a predefined magnification in Adobe Reader?

Question

We have a downloadable PDF file which looks great at 72% magnification in Adobe Reader and not so good at 101%. When downloaded and opened in the reader, its default magnification is 101%.

Is there a way to define the default magnification in the PDF file itself so that we ensure the best user experience?

Thank you!

Answer 1

If you can control the URL used to download, you can put parameters in the URL to control how the built-in reader will display the file.

For example, http://example.org/doc.pdf#zoom=50 will set the magnification to 50%.

See: https://www.evermap.com/AutoBookmark/Manual/OpenParameters.htm

The above applies to the built-in reader supplied by Adobe. Other readers may not honor the parameters. In particular, see the answer to this question regarding Chrome.