Unlock PDF and Lock PDF for Mac For Free

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Last updated on Dec 12, 2023

Discover the simplicity of processing PDFs online

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Upload your document in seconds
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Fill out, edit, or eSign your PDF hassle-free
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Download, export, or share your edited file instantly
Top-rated PDF software recognized for its ease of use, powerful features, and impeccable support
Users Most Likely To Recommend - Summer 2025
Grid Leader in Small-Business - Summer 2025
High Performer - Summer 2025
Regional Leader - Summer 2025
Easiest To Do Business With - Summer 2025
Best Meets Requirements- Summer 2025

Every PDF tool you need to get documents
done paper-free

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Create & edit PDFs

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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Fill out & sign PDF forms

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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Organize & convert PDFs

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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Collect data and approvals

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.
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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.
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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.

Customer trust by the numbers

64M+
users worldwide
4.6/5
average user rating
4M
PDFs edited per month
9 min
average to create and edit a PDF
Join 64+ million people using paperless workflows to drive productivity and cut costs

Why choose our PDF solution?

Cloud-native PDF editor

Access powerful PDF tools, as well as your documents and templates, from anywhere. No installation needed.

Top-rated for ease of use

Create, edit, and fill out PDF documents faster with an intuitive UI that only takes minutes to master.

Industry-leading customer service

Enjoy peace of mind with an award-winning customer support team always within reach.

What our customers say about pdfFiller

See for yourself by reading reviews on the most popular resources:
so far so good...I have just tried it today with billing to Medicare and I hope the forms go through properly and the claims are paid. I will not know how this works until I see if the claims have been honored.
Marjorie L Roblin L
2017-09-03
PDFfiller is easy to use. I feel that PDFfiller is great fro our company. We can use this software for various ways throughout our company. I love that I can take a blank application and make it fillable for others to use. I don't have anything about it that I don't like.
Valencia D.
2019-09-19
The level of communication the team has… The level of communication the team has is second to none. Best customer experience. I recently tried the free trial, I forgot to cancel after the free trial because I needed their service @ that time only. When then cancel my subscription I didn't get a refund, but the team explained to me why that happed if do want a refund what should I do.I then followed the steps and within the time they said , I got my refund. Keep up the great work team
Haseeb Amjad
2022-12-19
Very convenient! Refilling forms is now a thing of the past for me, with this app I can make templates for reusable forms, it‘s also a convenience for my client as I can pull up forms in no time. Erasing was quite a struggle when I was assisting my coworker, it took a while to figure that I only have to adjust the size. What do you think about this review?
Garrett
2021-11-21
Just getting started. Signed up a few months ago but it is only now that I am getting around to cleaning up my forms for a virtual behavioral medicine practice
George G
2021-10-23
I had an issue that was my fault and it was taken care of immediately. Even late at night. I was very worried that there was no phone number or email to contact them but they replied quickly through their live support and took care of my issue and fully refunded my money. Thanks.b
Lydia T
2021-09-12
AWESOME SUPPORT AWESOME SUPPORT! - These Guys are super fast with their support. The possibility to chat with real guys and not a chatbot is perfect!
Johannes Ritter
2021-06-24
really great program this was a very user friendly interface, no guessing what different tools do or where anything is located everything is organized and very simple but at the same im there is a lot of useful and needed options for editing the pdf, even a way to convert to other document styles and save...can share or and docs as attachment to contacts that you choose, and h\they have the option to edit and add to the doc as well. im also getting a totally free no gimmicks snags or hidden charges or fees and i mean legit its really free for real! highly recommend!!!
britt
2020-07-21
Very easy to use for both personal and… Very easy to use for both personal and professional documents. Especially for someone like me who is always on the go!
Alijah Gray
2020-07-14

Unlock and Lock PDF for Mac

Manage your PDF files effortlessly with our Unlock PDF and Lock PDF features for Mac. Protect your sensitive documents or gain access to locked PDFs in just a few clicks. This user-friendly solution ensures your files are secure, while also allowing you to open those that have been locked.

Key Features

Easily unlock secured PDF files for editing and viewing
Set passwords to lock your PDFs for secure sharing
User-friendly interface for smooth navigation
Support for various PDF formats and sizes
Fast processing without quality loss

Potential Use Cases and Benefits

Access PDF documents sent by colleagues or clients that are password protected
Lock sensitive documents before sending them through email
Protect business proposals, contracts, or personal information
Collaborate easily without compromising security
Maintain control over who can view or edit your PDFs

With our Unlock PDF and Lock PDF features, you can solve common PDF challenges effectively. Unlocking a document allows you easy access when you need it, while locking your files ensures they remain safe from unauthorized viewing. Whether for work or personal use, these features empower you to take control of your PDF documents.

Get documents done
from anywhere

Create, edit, and share PDFs even on the go. The pdfFiller app equips you with every tool you need to manage documents on your mobile device. Try it now on iOS or Android!

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
Right-click on the locked PDF file. Select Open with Followed by Preview. Type the password and press Enter. The file is opened now. Enter the location to Save the locked PDF file, Uncheck the Encrypt option before saving the PDF document.
Just right-click on the PDF file you wish to protect and select Open With followed by Preview. It will launch the file in Preview on your Mac. Since the file is password protected, the app should ask you to enter the password for the file before you can view its content.
In the Preview app on your Mac, open the PDF that you want to password-protect. Choose File > Export, then select Encrypt. You can also enter a new name for the PDF if you want to create a pass worded copy and keep the original PDF unencrypted. Type a password, then retype it to verify the password. Click Save.
Download the PDF file on your Mac. Go to Finder > locate your file and double-click it to open it in Preview. Enter the password to unlock the PDF document. Once your PDF file is unlocked, click on File > Export as PDF > enter the file name and set its destination > hit Save.

#1 usability according to G2

Try the PDF solution that respects your time.
Users Most Likely To Recommend - Summer 2025
Grid Leader in Small-Business - Summer 2025
High Performer - Summer 2025
Regional Leader - Summer 2025
Easiest To Do Business With - Summer 2025
Best Meets Requirements- Summer 2025