Last updated on
Jan 16, 2026
Locking PDF Document Made Simple For Free
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Generate new PDFs from scratch or transform existing documents into reusable templates. Type anywhere on a PDF, rewrite original PDF content, insert images or graphics, redact sensitive details, and highlight important information using an intuitive online editor.
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Say goodbye to error-prone manual hassles. Complete any PDF document electronically – even while on the go. Pre-fill multiple PDFs simultaneously or extract responses from completed forms with ease.
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Add, remove, or rearrange pages inside your PDFs in seconds. Create new documents by merging or splitting PDFs. Instantly convert edited files to various formats when you download or export them.
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Transform static documents into interactive fillable forms by dragging and dropping various types of fillable fields on your PDFs. Publish these forms on websites or share them via a direct link to capture data, collect signatures, and request payments.
Export documents with ease
Share, email, print, fax, or download edited documents in just a few clicks. Quickly export and import documents from popular cloud storage services like Google Drive, Box, and Dropbox.
Store documents safely
Store an unlimited number of documents and templates securely in the cloud and access them from any location or device. Add an extra level of protection to documents by locking them with a password, placing them in encrypted folders, or requesting user authentication.
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What our customers say about pdfFiller
See for yourself by reading reviews on the most popular resources:
Found out about this on Google; did not want to pay to get Adobe Acrobat! It's easy to use to input text, and then after I figured out I had to register for$/month etc. I could Print and Save As. Wonderful Resource, thank you.
2015-06-14
So far PDFfiller has been extremely easy to use and very useful! I previously used another program to convert and to edit PDF documents. Although it was also easy to use, this one is much easier and has way more options.
2016-03-23
What do you like best?
All-in-one tool that ultimately expedites the process of filling out and scanning forms.
What do you dislike?
Nothing in particular; fixed one-time pricing would be preferable over subscriptions though.
What problems are you solving with the product? What benefits have you realized?
Reducing the amount of physical computer hardware in the office (scanners, printers) through the use of software such as PDFfiller.
All-in-one tool that ultimately expedites the process of filling out and scanning forms.
What do you dislike?
Nothing in particular; fixed one-time pricing would be preferable over subscriptions though.
What problems are you solving with the product? What benefits have you realized?
Reducing the amount of physical computer hardware in the office (scanners, printers) through the use of software such as PDFfiller.
2016-08-30
The best PDF converter
Excellent.
My current job is as freelance translator, and sometimes my customers send me the documents in PDF. for me, it's easier to work with WORD format.
You can convert any type of file into editable one.
In case of scanned PDF, it doesn't work.
2019-03-12
A life saver
pdfFiller has helped me to make easier my load of work and without I might be stressing a lot.
What I like most about this software is the ease of use, as an educator I need to use PDF's everyday and this software helps me a lot with that.
The free trial is good but then you need to pay for another features.
2022-11-13
I have been using ********** and AirSlate for over a year now to create digital documents and digitally signable documents. The system is very user friendly and all the options to automate my digital forms are logical and intuitive. I highly recommend this product for creating digital forms.
2022-08-29
Could make it a little easier to sign…
Could make it a little easier to sign and save documents to your desktop, especially when you need to send signed documdents via email.
2022-02-19
My Issue
Only real issue I have is there doesn't seem to be any way to save the same PDF after I've modified it with the sight. If there was a way to do that I'd have probably given 5 star
2021-12-29
Very good to be able to edit pdfs
Very good to be able to edit pdfs, though it is still a fairly clunky procedure. But for a free download you can't complain.
2021-07-05
Locking PDF Document Feature
The Locking PDF Document feature provides you with the tools to protect your important files effectively. By restricting access, you maintain control over who can view and modify your documents. This feature is essential for individuals and businesses that prioritize security.
Key Features
Password protection to limit access
Permission settings for editing and printing
Watermark options for added security
User-friendly interface for easy use
Compatibility with various PDF readers
Potential Use Cases and Benefits
Secure sensitive information in legal documents
Protect client files in financial services
Safeguard proprietary data in business proposals
Manage access in educational materials
Enhance confidentiality in medical records
By using the Locking PDF Document feature, you address the common problem of unauthorized access to important files. This solution empowers you to share documents confidently, knowing that your sensitive information remains secure.
How to Use the Locking PDF Document Made Simple Feature
The Locking PDF Document Made Simple feature in pdfFiller allows you to easily secure your PDF documents and control who can access and edit them. Follow these steps to use this feature:
01
Login to your pdfFiller account. If you don't have an account, you can sign up for free on the pdfFiller website.
02
Once logged in, click on the 'My Forms' tab at the top of the page.
03
Select the PDF document you want to lock from the list of forms.
04
Click on the 'Lock' button located in the toolbar above the document.
05
A pop-up window will appear where you can set the password for the document. Enter a strong password that is easy for you to remember but difficult for others to guess.
06
After setting the password, click on the 'Lock Document' button to apply the lock to the PDF.
07
Your PDF document is now locked and can only be accessed by entering the correct password.
08
To unlock the document, simply click on the 'Unlock' button in the toolbar and enter the password.
09
You can also change the password for a locked document by clicking on the 'Change Password' button in the toolbar.
10
If you want to remove the lock from a document, click on the 'Remove Lock' button in the toolbar.
By following these simple steps, you can easily secure your PDF documents using the Locking PDF Document Made Simple feature in pdfFiller. Enjoy the peace of mind knowing that your sensitive information is protected!
For pdfFiller’s FAQs
Below is a list of the most common customer questions. If you can’t find an answer to your question, please don’t hesitate to reach out to us.
What if I have more questions?
Contact Support
What happens when you lock a PDF?
Locking a PDF can protect the integrity of a document. If you have made comments on a document, or approved a specific version of a document before exporting it as a PDF, locking the PDF from editing can prevent anyone from making changes afterwards.
How do you add security to a PDF?
Choose File > Open, and open the SBR_Logo. Choose File > Save As, name the file SBR_Logo1. Click the Secure task button (with the padlock icon), and choose Show Security Properties. From the Security Method menu, choose Password Security. Select your compatibility level from the Compatibility menu.
How do you add a password to a folder?
In Windows Explorer, navigate to the folder you want to password-protect. Right-click on the folder. Select Properties from the menu. On the dialog that appears, click the General tab. Click the Advanced button, then select Encrypt content to secure data. Double-click the folder to ensure you can access it.
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