PDF file, as we know it, is hard to edit without the professional PDF editor, and if you want to edit protected PDF, it becomes more challenging. Some people add a password to protect their PDF from editing and printing, but many PDF editor, such as Adobe Acrobat, usually doesn't support to edit password protected PDF on Mac unless you unlock PDF first. So, if you want to edit a password protected PDF on Mac, removing password protection from PDF is the first step.
Do you have any clue why we call "remove PDF password" as the 1st step to edit your protected PDF on Mac? In general, PDF can be protected by 2 kinds of passwords: User Password (required to open a PDF) and Owner Password (required to edit a PDF). If your PDF can not be edited, it is owner-password protected and you have to remove the owner-password to make the PDF editable, then you can edit it as needed.
Removing password protection from PDF on Mac needs a professional PDF password remover, Cisdem PDFPasswordRemover for Mac is a good choice for Mac users. It is a great PDF unlocker that was designed to removes unknown owner passwords and known user passwords from encrypted PDF files.
Step 1. Launch Cisdem PDFPasswordRemover on your Mac.
Cisdem PDFPasswordRemover allows each user to have a free trial of it, you can click the “Free Donwload” button to try it. After installed this application, you need to launch it on your Mac.
Step 2. Input your PDF to this PDF Password Remover.
Two ways to input PDF file to this application, one is clicking "Add Files..." button, other is drag & drop, it is easier to select PDF file. And it is worth to mention that this application supports decrypting up to 200 PDF files at a time, you can add multiple PDF files.
Step 3. Remove password protection from your PDF file.
Click "Remove" button to start. Just wait a moment, you will be able to edit your PDF file.
But, if your PDF is protected by an unknown user password which restricts your file from opening and viewing, there would be a lock icon appearing with your PDF. Click the lock icon, either enter the user password if you know or directly decrypt the password if you forgot it.
Go to the settings as follows. You can check or fill in the above options like, password length, additional characters, etc. By doing so, you will save a lot of decryption time.
Recommended: How to Remove Security from PDF on Mac?
Now, you can edit your protected PDF on Mac easily. To edit PDF on Mac, you may need a powerful PDF editor for Mac. If you installed Adobe Acrobat already, it is your best choice, if Adobe Acrobat is expensive for you, I have a great alternative for you, Cisdem PDFManagerUltimate for Mac.
PDFManagerUltimate for Mac is an all in one PDF solution, that will makes you more productive with PDF in every capacity: edit PDF files, convert normal or scanned PDF file, sign, split, merge, compress, comment, collaborate and organize your PDFs with unprecedented ease and speed. With this PDF tool, you can edit your PDF files easily and effectively.
Step 1. Launch Cisdem PDFManagerUltimate on your Mac.
Just as PDF Password Remover, you also have a chance to try Cisdem PDFManagerUltimate for free. Click “Free Donwload” button to download this PDF tool, and launch it on your Mac.
Step 2. Add your PDF files to Cisdem PDFManagerUltimate.
You can add your PDF files to this PDF editor by drag-n-drop, which makes selection of PDF files more convenient. Then you can preview your PDF file on it.
If you know the PDF password of your file, you can directly use PDFManagerUltimate to open the encrypted file by entering correct password, then edit the PDF in PDFManagerUltimate;
If you forgot your PDF password, you have to remove the password protection using the PDF Password Remover first, then edit the file.
Step 3. Edit your PDF on Mac.
You need to click the "Edit" button on the top, then you will view the details of your PDF files. Then you can edit PDF texts and page, use the PDF annotation tools to add texts, comments, notes, or shapes (Rectangle, Rounded Rectangle, Circle,) to the PDF, highlight, cross-out, underline text, and draw an arrow or a line.
The above mentioned is the most convenient method to edit protected PDF on Mac. Surely, there is also another way available to do that, you can convert protected PDF to word so that you can edit it more easily. If you are interested in this method, you can visit another article ”How to Convert Secured PDF to Word on Mac”, it will give your complete information.
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