A-PDF Password Security is powerful security software that cannot only allow you to add password to protect your PDF files, but also enables you to remove password protection for encrypted PDFs.

2. Question:
 I added password to protect my PDF files,
but now I want to remove the password
security from these PDF files. And there
are quite a lot of encrypted PDFs I need to
decrypt, so how can I remove the
password protection of multiple PDF files
quickly?

3. Solution:
 A-PDF Password Security is powerful security
software that cannot only allow you to add
password to protect your PDF files, but also
enables you to remove password protection for
encrypted PDFs. And this software can improve
your working efficiency by processing password
removing in batches. But the premise is that
you have the password. You can follow below
steps to remove password security off a batch
of PDF files:

4. Step 1: Select Batch Mode
After you start A-PDF Password, select "Batch PDF Document Security" and
then click "Next".

5. Step 2: Add PDF
DocumentsClick "Add" or "Add Dir" to add password protected PDF documents to the
software.

6. Step 3: Input Password
Click "Options…" and in the pop-up window, click "Password Pool" tab and
input password. If you are not sure what the correct password is, you can input
multiple passwords. And A-PDF Password Security will try these passwords to
until it finds the correct one.

7. Step 4: Try Passwords
Click "Try passwords" to try the passwords in the Password Pool. And once any
of the passwords in the Password Pool matches the password, the password
protection of the PDF file will be removed. Then click "Next".

8. Step 5: Save Decrypted
PDFsIn the next screen, click "Save" or "Save as…" to remove password protection
off the PDF files.

9. Thank you for reading!
For more info:
http://a-pdf.com/faq/how-to-
remove-password-protection-
for-a-batch-of-pdf-files-by-
using-a-pdf-password-
security.htm