Lock PDF on Linux For Free
Drop document here to upload
Up to 100 MB for PDF and up to 25 MB for DOC, DOCX, RTF, PPT, PPTX, JPEG, PNG, JFIF, XLS, XLSX or TXT
Note: Integration described on this webpage may temporarily not be available.
0
Forms filled
0
Forms signed
0
Forms sent
Discover the simplicity of processing PDFs online
Upload your document in seconds
Fill out, edit, or eSign your PDF hassle-free
Download, export, or share your edited file instantly
Top-rated PDF software recognized for its ease of use, powerful features, and impeccable support
Every PDF tool you need to get documents done paper-free
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.
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.
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.
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.
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.
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:
Wonderful - the only way to make it better is to make it free or at least cut the cost in half. Thanks so much!! All in all a wonderful service and really worth the price!
2017-07-07
waste of money. program to difficult to learn. I am a 1 2 3 type of person. This program does not fit my needs
lack of experience on my part. process greater easie
2018-09-10
What do you like best?
The upside is that it's very efficient and expedites completing forms effectively. I have used other software and didn't find them to be easy to navigate or efficient.
What do you dislike?
The downside is that sometimes the text doesn't align when filling in forms I have to complete from other service industries. Also, when PDFfiller is the default PDF it does not print without having to refresh several times.
Recommendations to others considering the product:
This software is really good and does make my administrative work easier and less tedious. There are some quirks but when I have experienced them, the support received was expedient and exceeded my expectations.
What problems are you solving with the product? What benefits have you realized?
It has really helped me to complete the necessary documents in a timely manner when there are no glitches. I love the easy access to my documents when completed.
The upside is that it's very efficient and expedites completing forms effectively. I have used other software and didn't find them to be easy to navigate or efficient.
What do you dislike?
The downside is that sometimes the text doesn't align when filling in forms I have to complete from other service industries. Also, when PDFfiller is the default PDF it does not print without having to refresh several times.
Recommendations to others considering the product:
This software is really good and does make my administrative work easier and less tedious. There are some quirks but when I have experienced them, the support received was expedient and exceeded my expectations.
What problems are you solving with the product? What benefits have you realized?
It has really helped me to complete the necessary documents in a timely manner when there are no glitches. I love the easy access to my documents when completed.
2020-02-05
Refund amount was authorized on a…
Refund amount was authorized on a timely matter without hassle. I was not easily able to unsubscribe when accessing my account directly through my google account.
2024-10-04
The product is super easy to use
The product is super easy to use, from creation until the document is saved. I used it continuously for 26 of the 30 trial days and will definitely resubscribe going forward. I rate it as the best of its kind.
2024-09-26
I needed to submit an affidavit and didn't know where to begin and came across you site for the form and the free trial. I really appreciated the fact that you have the free trial available. Im' retired and do not need to use a lot of legal documents at this time. Thank you again.
2022-04-14
Great service
Great service, and extremely helpful. this is fantastic if you own a business or just need professional documents done. i love this and recommend it to all.
2021-05-12
I like that I can fill in and even sign document through pdf filler. It is very convenient and saves me a lot of time and headaches. It also allows me to have a more professional look on my documents which has gotten me a reputation for being professional.
2020-08-16
Excellent customer service and support
Excellent customer service and supportI recently needed to contact them for an issue I had and was helped by Shannen. I used their Live Support Chat, waited less than 1 minute and my problem was dealt with with in less than 5 minutes. Shannen was helpful, polite and made it easy. The fact that this took such little time, without hassle was fantastic. Excellent company to deal with!
2020-05-27
Lock PDF on Linux Feature
Protect your sensitive documents with the Lock PDF feature on Linux. This tool offers a simple and effective way to secure your PDF files from unauthorized access. By locking your PDFs, you can ensure that only authorized users can view, edit, or share your important information.
Key Features
Set password protection to control access
Restrict printing and copying of content
User-friendly interface for quick action
Compatible with various Linux distributions
Maintain document integrity
Potential Use Cases and Benefits
Share confidential reports with team members securely
Protect financial documents from unauthorized access
Lock personal files before sharing via email
Ensure compliance with data protection regulations
Safeguard intellectual property in business presentations
Locking PDFs on your Linux system addresses the growing concern of data security. By implementing this feature, you prevent unauthorized access, maintain confidentiality, and protect your valuable documents. As you navigate the digital landscape, securing your PDFs becomes not just important, but essential.
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
How do I protect a file with a password?
Go to File > Info > Protect Document > Encrypt with Password.
How do I password protect a file in Linux?
How to Password-Protect Files on Linux Open the terminal. Use the cd command and ls command to navigate to the directory containing the file you want to password-protect. Once inside the directory, run the following command to encrypt your file: gpg -c filename.
How to encrypt a file Linux?
That's it. Open a terminal window and generate a GPG key. ... Change into the directory housing the file. ... Encrypt the file. ... Configure the password cache agent. ... the required software. ... Open the Nautilus file manager. ... Select your encryption method. ... Decrypt the file.
Which utility can be used to password protect file in Linux?
GPG. GPG, or GNU Privacy Guard, is a free and open-source encryption tool that uses OpenPGP standard. It's a widely used tool that offers both symmetric and asymmetric encryption. With GPG, you can encrypt files with a password or a public key.
How to lock a file in Linux with password?
How to Password-Protect Files and Folders on Linux Step 1: EncFS. ... Step 2: Create a folder for EncFS. Step 3: Set up EncFS. ... Step 4: Move files into the encrypted folder. Step 5: Unmount the encrypted folder. ... Step 6: Access your files.
How do I encrypt a PDF in Ubuntu?
How to password-protect a PDF file on Ubuntu sudo apt-get pdftk. pdftk output user_pw pdftk input.pdf output output.pdf user_pw 1234.
#1 usability according to G2
Try the PDF solution that respects your time.