Lock PDF With Password Online

Lock a PDF document online. Free software that helps you lock a PDF with a password and without having to download any app.
Trusted by
Lock PDF With Password Online
No card required
No time limit

How to lock a PDF for free (online)

You can lock a PDF for free with SignHouse. Upload your document > Type a password > Re-enter to confirm it > Apply changes and download.

Create a password protection system for your PDF documents in the following steps: Upload the file in our system, type a password and confirm it, and then download the document. It’s really that easy to lock a PDF online without having to pay anything! Now, let’s recap these three steps:

A dashed line

1. Upload your PDF

Drag & Drop the PDF document that you want to lock with a password.

A dashed line

2. Add the password

Type and then confirm the password that is going to lock your PDF document.

3. Save the locked PDF

Now that your PDF document is locked, feel free to download it in just one click.

Lock a PDF document with a password

Limit people's access to your PDF document by locking it with the help of a password. At SignHouse, we're offering the simplest way to lock a PDF online. You just have to upload your file and add the password by typing it out and re-confirming it. It's really important to re-type the same password in order to confirm the validate the key to the PDF. After locking the file, every time you're going to open it, you'll have to put in the password in order to unlock the file.

How to lock a PDF so it cannot be edited

Limiting access

Reduce people's access to your PDF document. Lock your PDF to prevent everybody from accessing the contents of your files and share the password only with those that you want to know it. Secure PDFs!

Locking a PDF is free

Correct — You don't have to pay anything in order to lock a PDF online with our tool. Everyone is supposed to have free access to a tool that lets you secure your documents. No gimmicks here.

Infinite files

With SignHouse, you can use the PDF locker as many times as you need it. We don't set any daily usage limit for our PDF locking software, unlike other tools. Upload, lock, enjoy. It's that easy with us.

Download no app

Our PDF locking software is 100% online-based. You don't have to download any app in order to lock your PDF files. Save some space on your memory disk and use SignHouse on your web browser.

Why lock a PDF with SignHouse?

The #1 reason to pick SignHouse as your PDF locking software is that you don't have to pay anything for it. We can help you lock a PDF document using a password on all of your devices. All it takes is to just upload the file, type and confirm the password, and then enjoy having a much safer PDF document.

On all platforms

Feel free to lock PDF documents using your favourite devices: phones, tablets, laptops, or desktop PCs. SignHouse is made to run on any of these devices so you can access the PDF locker wherever you are.

Private files

We care about our privacy, and we know that you care about yours too. That's why we never share your data with anybody else. Hence, all of your PDFs and other documents stay safe with us. Read more about it here.

Easy to use

Locking a PDF is really not that difficult. It doesn't involve coding or anything that seems complicated. All you have to do is upload the PDF, insert a password, and then use the document further.

Here for you

Need any assistance with the PDF locking software? Our live support team is one click away from you. Just click the bubble in the bottom-right corner of this page, and you'll start a live conversation.

What they say about us

No-brainer pricing for a small business - or even big business, I reckon : - )

Tried the product. Worked like a charm. Never had any problem + the clean UI got us. Wish there would be more features, but I believe in the team behind.
Harsh G.
Founder, CEO
SignHouse has been nothing short of convenient, efficient and fast. Oh and top notch customer support too...

Couldn't ask for more!
Julie M.
Executive Administrative Assistant
SignHouse has made a big difference in the workflow of my business. Sure there are other, more mature e-signing platforms out there, but they are all convoluted and too focused on big, enterprise companies. It feels like SignHouse is on our side.
Michael B.
Photography Consultant
Getting documents to parents is significantly simpler now. However, even more importantly, parents aren't getting lost in the signing process anymore. 👍
Sandy T
SignHouse was AMAZING for what we needed. "Do one thing and do it well" - they've nailed that, as everyone is very happy with the product here.

Looking forward to seeing how the product develops, as the team is super ambitious.
Kate Gross
Manager at Fixthephoto.com
"Simpler, yet does the job better than most of the clunky eSignature software out there"
"SignHouse cut down on our signing processes by at least 50% - and we were using eSignature software before as well"
"I just never thought signing documents can ever become a pleasurable experience"

Frequently asked questions

Are your electronic signatures legal?

Our signatures are 100% legally binding, as SignHouse is built around US and International Laws concerning digital signatures. SignHouse eSignatures are on par with paper signatures, from a legal point of view!

Signing papers digitally started being equal to physical, handwritten signatures in the U.S. eSignature Act of 2000 (U.S. Federal Act) + the Uniform Electronic Transaction Act (UETA). As a consequence, laws in other countries have followed suit. SignHouse is built around these laws.

Are you adding an actual eSignature or just an image?

All signatures are a real, eSignature that is 100% legally binding.

We save important, relevant data (that can be used legally in all types of situations, including in courts) such as identifiable details of a person, IP addresses, etc, just so our electronic signatures can be as valid as digital signatures can get.

What about privacy and security?

SignHouse's signatures are secure for all kinds of businesses and companies. All our signatures happen on a secure, SSL-connected domain. Documents are not made public and unique keys are generated through SignHouse so that privacy and security are at the foundation of the documents on our platform.

How do my signees get to sign with SignHouse?

We've streamlined the signing process so that your signees can sign your documents with no hurdles at all — and with the smallest amount of steps required. It can take as little as 30 seconds! 

How do you compare to ______?

We have a generous free plan, so we highly encourage you to make the comparison yourself! It costs you nothing - and no hard feelings if you don't want to go with us.

We would really love to know what made you go with us or somebody else! If you could take a moment to write to us about that, we'd highly appreciate it.

What if I have more questions?

Then we're standing by to help. Contact us, and we'll do our best to help 🤗

What's different about SignHouse?

SignHouse is completely free to start. Just upload a doc and start signing in a few minutes!
What’s your cost of losing doc signatures just because signing didn't work on mobile? We fix that.
Optimized for 0 headache
SignHouse was made to simplify the eSigning. Long gone are the days of clunky solutions.
Trackable documents
Documents signed with SignHouse come with simple analytics that just don’t give you a headache.
It Just Works™
Big, old software is buggy, clunky and slow. Built with simplicity in mind, we make signing a breeze.
Fast to use, fast to load. The SignHouse experience will be snappy for you and your signers.