12 Best PDF Unlocker Tools for Windows – TechWhoop


PDF(Portable File Format) is a file format used to present and exchange any document which is reliably accessible independent of any software, hardware or any operating system. Adobe invented it, but now it is an open standard maintained by the International Organization for Standardization (ISO).

Have you ever come across a pdf file you want to explore but unfortunately locked or password protected? And now you want to unlock it. So let me find you the best possible solution.

Let us first explore the tools available online. It is probably the best option. You need to upload the protected files first, and after the successful process, you just need to download the open files. The sites which are worth mentioning are:

Top 10 PDF Unlocker Tools


It is a free online PDF remover available on the web. You just need to upload the encrypted PDF file, wait a few seconds while the password is being removed, and then download the new decrypted PDF. It will decode PDF files up to 128-bit AES encryption. The maximum PDF size is 400 MB.



It is an easy-to-use online PDF password remover which is available online. It works on the same principle of the above. Just upload the locked file and download the open file. But here you have a limit of 20 MB files also the encryption is low.

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PDFCandy is a new site with a very user-friendly interface. Once visited you will get all the useful tools for a PDF at one place. You can edit files, merge and split them, compress them and also unlock PDF files. The processing speed of this site is pretty fast and delivers quality work.

PDF Candy
PDF Candy


It is another free online PDF Unlocker. It has several other features along with it, like PDF to Word, compress PDF, Rotate PDF, merge PDF, etc. it has a limit of 100 MB file size.


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This is one of the oldest sites on the web. Here you can unlock PDF in a batch. Olso in this site you can convert any documents like word, Excel, images, etc. to PDF for free. It offers file compression and decryption for file up to 128-bit encryption.


As the name suggests, it supports all the possible conversions with a PDF file like a word to PDF, image to PDF, etc. You can use this site to unlock PDF files up to 128-bit level 7 encryption.


The primary function of this site is to let user join PDF files online. It offers other tasks like compress PDF, PDF to word, JPG to PDF, PFD unlock, etc. The site uses small size files up to 20MB. You also get a free PDF editor tool online for various editing requirements like split, rotate, etc.

PDF Merge
PDF Merge

If the first process fails, we can take the help of different software available for windows. This software has some added advantages. Almost all of them have unlimited file size. They have high success rate with high decryption rates.

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Some of the top-rated software available for PFD decryption and various editing are:


PDFCrack is the best free PDF password recovery tool available as an open source software. It uses brute-force password recovery program listed under 128-bit RC4 encryption.
It recovers both the user and owner password from encrypted PDFs. PDFCrack is a cmd line tool and should work on both 32-bit and 64-bit versions of all windows succeeding Windows XP.

GuaPDF Demo

GualPDF Demo is a combination of PDF password remover/recovery tool. It is easy to use and doesn’t even require installation. It is primarily a PDF password remover for owner password. GuaPDF can, however, decrypt PDF files at higher levels of encryption with even 256-bit AES encryption.

PDF Password Remover

PDF Password Remover is another installable PDF decrypter tool with a simple PDF-in / PDF-out interface. As the name suggests, it is a password remover tool for owner password. It works on all files encrypted at 128-bit RC4.

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SysTools PDF Unlocker

SysTools is another paid installable PDF Unlocker. It can remove any PDF restrictions for printing, copying, editing and extract text. It has an inbuilt PDF editing tool and works offline. Not to mention, it can unlock files in batch with 128/256 bit encryption.

SysTools PDF Unlocker
SysTools PDF Unlocker

It is compatible with all windows versions. Similarly, it is an owner copyrighted software with a one-time-purchase for $29. Systool guarantees 100% user satisfaction and scores 8.4 out of 10 as a document management software by FinancesOnline.

Estelar PDF Unlock Tool

It is another paid utility software for PDF files. Also, it can unlock PDF files of encryption up to 256-bits. It runs on all windows platform and also provides various other useful tools like PDF editing, file marge, etc.


It comes with a one-time payment of $19 with 60 days money-back. It also comes in a free evaluation version which provides the user a 7-days trial.


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