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- Adobe Acrobat Plans. If you pay for Acrobat, Acrobat Pro DC will run you $14.99 a month for an annual subscription or $24.99 a month for a monthly subscription.
- Password Protect. After installing Acrobat Pro, launch the program and open the PDF you want to protect. Click File > Protect Using Password, then decide if you want the recipient to enter a password for viewing or for editing the document.
- Enter or Remove Password. Now when someone opens the file in Adobe Reader, Adobe Acrobat, or another PDF reader, there should be a prompt to enter the password in order to gain access.
- PDFEncrypt. A free, open-source alternative to Acrobat is PDFEncrypt, which offers a simple yet effective tool for password protecting a PDF. The basic interface asks you to choose the file you wish to encrypt.
How to password-protect a PDF. Follow these easy steps to create a PDF password: Click the Select a file button above, or drag and drop a PDF into the drop zone. Enter a password, then retype it to confirm the password. Click Set password. Download the password-protected PDF document, or sign in to share it.
Dec 21, 2023 · For a PDF Portfolio, select Protection > Security properties from the hamburger menu (windows) or Select Document Properties from File (macOS). In the Document Properties dialog box, select the Security tab. Select the dropdown next to Security Method, and then select Password Security. In the Password Security - Settings dialog box, select ...
- Password security basics. You can limit access to a PDF by setting passwords and by restricting certain features, such as printing and editing. However, you can't prevent saving copies of a PDF.
- Add a password to a PDF. Try it in the app. Restrict editing by securing your PDF with a password in a few simple steps. Open Acrobat. Open the PDF in Acrobat.
- Restrict editing of a PDF. You can prevent users from changing PDFs. The restrict editing option prohibits users from editing text, moving objects, or adding form fields.
- Restrict printing, editing, and copying. You can prevent users from printing, editing, or copying content in a PDF. You can set the restrictions you want to apply to the PDF.
Open the document you would like to password-protect. Click File. Select Info. Select Protect Document. From the dropdown menu, choose Encrypt with Password. Type a password, then click OK. Type the password again to confirm it, then click OK. Your document is now secure.
1. Choosing a strong PDF password. A poor choice of PDF password will not adequately protect your information. If you use a very short and simple password — perhaps a word from your daily life — you risk making your PDFs easy to crack. Current best security practices recommend using passwords of at least 12 characters, but longer is always ...
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It appears that Word's password protection is not really good, at least until Office 2003, if I read this SU entry correctly. I'm under the impression that Acrobat's PDF password protection should be better (it says 128-bit AES for Acrobat 7 and higher). Is that true?
