What is the best PDF password remover for a known password?

Amit S March 19, 2013

Suggest me one best PDF password remover. I already have the password which is 18 characters long containing only alphabets and numbers only, no special characters.
I have over 400 files for which the password has to be removed.

  1. Sheel S
    May 23, 2013 at 11:50 am

    Well, I would suggest Ahead PDF Password Remover. It support batch decryption too, that means you can easily unlock multiple PDF files at once. Here is the link to the website: http://www.mypdfsolutions.com

    Hope it helps!

    • Pamela
      June 25, 2013 at 10:08 am

      Hi guys, recommend to use pdf password security remover provided by AWinware, worked great for me. hope it help you too. follow the link:

  2. lisa
    April 25, 2013 at 9:26 am

    I have used the AST pdf password remver,easy to use . http://download.cnet.com/AST-PDF-Password-Remover-for-Mac/3000-2092_4-75846512.html . Are there any other cheap password recovery or remover~~~

  3. SelvaGanesh
    March 25, 2013 at 12:06 pm
  4. palla2009
    March 24, 2013 at 7:59 am

    The legitimate ways to remove password from PDF is shown in the above articles. But if you wan to create secure password, you should try this technique. http://www.softreadwrite.com/1011/top-3-ways-to-create-secure-passwords.html

  5. Nitesh Badala
    March 20, 2013 at 10:01 am

    try PDF Unlocker

    • Tina Sieber
      March 20, 2013 at 12:58 pm

      What do you like about it? Is it free? Do you have a link?

  6. Cindy Young
    March 20, 2013 at 9:45 am

    if it is a password to prevent you from opening it, the password is too long, i am afraid common user cannot remove or get the password. the best pdf password remover is advanced pdf password recovery from elcomsoft. i am an expert on pdf password recovery.

  7. Chinmay Sarupria
    March 20, 2013 at 6:22 am

    There’s a free Windows utility called BeCyPDFMetaEdit that can help you remove passwords from PDF files but without make any other change to the document.

    1. Launch the program and it will ask your for the location of the PDF file.

    2. Before you select and open the PDF, change the mode to “Complete Rewrite.”

    3. Switch to the Security tab and set the “Security System” to “No encryption.” Click the Save button and your PDF will no longer require a password to open.


  8. Paul Pruitt
    March 19, 2013 at 3:50 pm

    I made a mistake. Step 9 should read:

    "9. Click Finish and then clean up the data by removing all the columns and rows that don't contain your PDF file names."

    Also in step 15, this comment system is not allowing the leaving a single back slash. I meant to show a path in Windows. I'll try double slashes. See below:

    C:\Program Files (x86)\PDF Labs\PDFtk Server\bin

  9. Paul Pruitt
    March 19, 2013 at 3:44 pm

    I'm not sure how good it is, but Free-PDF-Unlocker is freeware: http://download.cnet.com/Free-PDF-Unlocker/3000-2144_4-75793614.html. It does batch password cracking. If you tell it to use a dictionary attack in the settings, then include only your password in said dictionary maybe it will work.

    PDFTk, http://www.pdflabs.com/tools/pdftk-the-pdf-toolkit/, is a command line app you can install with which you can make a batch script to decrypt the PDFs as follows:

    1. Open a command prompt.

    2. CD (change directory) to the directory with your PDF files.

    3. Enter in the command: Dir > mypdf.txt (you can change the name of the text file with any name).

    4. Open the created text file and select it all and copy.

    5. Paste the text file into a blank Excel worksheet starting in cell A1.

    6. Use the Excel suggested text to column prompt or select the column with all the text and select "Text to Columns" from the Data menu of Excel.

    7. Use the "Fixed Width" method of separating the columns.

    8. Move the right most arrow to the 39th character or just before all the file names.

    9. Click Finish and then clean up the data by removing all the columns and rows that contain your PDF file names.

    10. Make sure your PDF files name are in column A and no other data in in other columns. Make sure the PDF file name start in the first row.

    11. In cell B1 paste in this formula:

    ="pdftk """&A1&""" input_pw foobar output ""decrypted_"&A1&""""

    (where foopass is your 18 character password).

    12. Copy this formula down Column B until the last row of PDF file names.

    13. Copy the entire row of results and paste them into a blank text file and save it in the directory that contains all your PDF files.

    14. Rename the text file with a .bat extension instead .txt.

    15. Open up in Explorer the folder: C:Program Files (x86)PDF LabsPDFtk Serverbin and copy the libiconv2.dll and pdftk.exe files. Paste them in your PDF directory.

    16. Double click on the new batch file you just created and see what happens.

    • Amit S
      March 21, 2013 at 11:08 am

      I am not looking for free one

  10. ha14
    March 19, 2013 at 2:21 pm

    here are some freeware and online tools, hope they can help you.

    How To Unlock Adobe PDF Files

    Free PDF Unlock Online Utility (Beta)


    Appnimi PDF Unlocker

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