Since PDF was created in 1993 by Adobe System, it becomes more and more popular and finally used as an oepn standard for document exchange and long-term archive. All in all, PDF documents are great tools for cross-platform communication of ideas and collaboration.
However sometimes you need the ability to convert a PDF back to the Microsoft PowerPoint format or word or text that create the presentation to be able edit and update it. The best free PDF Converter version is an easy-to-use tool that allows a PDF document to be converted to a fully editable PowerPoint Mac 2008/2011 ppt presentation– preserving the original layout of the presentation complete with original fonts and embedded images, graphs/charts. On the other hand, in order to protect our pdf files and want to share PDF files with encryption, we must add password to pdf.
For those who have not done that before, it’s a little confused and hard to create password for PDF because there are so many methods you can choose to add password to PDF. To save your time on searching for the best way, here we would like to introduce the ubiquitous choice of common PDF users to you – with Adobe Acrobat. Just follow the tutorial below and learn the way.
Step 1: Run Adobe Acrobat and open the target PDF file with it. If you have not install Acrobat on your PC, please go to the Adobe Office website to download and install it.
Step 2: Go to “File” option on the top menu and choose “Document Security”.
Step 3: Then the prompt will show up and the default setting is No Security. Open the Security Options drop-down list and select “Acrobat Standard Security”.
Step 4: Here you can set PDF password as you need, User Password or Master Password. There are also some permissions you can choose for our PDF file.
Step 5: A window opens asking you to confirm the password to open the document. After that, you will be asked to input the Master Password again. Do as it asks you to and finish the PDF password setting.
Related Recommendation: If you have got some PDF files which need to be converted to HTML files on Mac, here we strongly recommend the best PDF to HTML converter for Mac software to you. It supports batch conversion, so you can convert them at one time with good quality and fast conversion speed.
Related article you can refer to: How to convert pdf to word on mac