Password Protect 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:
Love being able to annotate and sign documents. Would love to learn how to interface with others and what is involved asking someone not using PDFFiller to sign a document.
2016-04-11
What do you like best?
The program is user friendly and helps me with the essential tools I need to fill in and change my PDF files. I use this on a daily basis for work and works very well with other programs I use.
What do you dislike?
The font match is the only downside of the program i face especial when I have to fill in words and characters onto the document. It takes time for to match the font that is similar to the original font. Collating pages in a certain order is difficult for me but I decided not to use this feature.
What problems are you solving with the product? What benefits have you realized?
I am facing no problems using the program. The main benefit I use this program is the editing of the documents revived for out business to use for our needs.
The program is user friendly and helps me with the essential tools I need to fill in and change my PDF files. I use this on a daily basis for work and works very well with other programs I use.
What do you dislike?
The font match is the only downside of the program i face especial when I have to fill in words and characters onto the document. It takes time for to match the font that is similar to the original font. Collating pages in a certain order is difficult for me but I decided not to use this feature.
What problems are you solving with the product? What benefits have you realized?
I am facing no problems using the program. The main benefit I use this program is the editing of the documents revived for out business to use for our needs.
2019-05-28
PDF filler is VERY easy to use
PDF filler is VERY easy to use. The only sticky point for me sometimes is finding forms. There is a library connected to the app but I often find the forms there confusing. So I google them and import.
2024-05-11
At last a brilliant document converter
At last a brilliant document converter
Easy to follow instructions. Good variety of tools available at an affordable price.
2023-09-27
I used the free trial to compile rent due ledgers for the ************** requirement. I did not cancel on time and was charged $180 dollars. I reached out to support and ****** returned my email within minutes. I provided my information to customer service specialist ****** and he fixed the problem. There wasn't any back and forth emails. It was straight to the point. Thank you ****** for being quick and professional.
2022-04-05
Only used a few times
Only used a few times, but so far no major issues. The only pain point, I would say is the editor...I am still getting in practice. Overall, this is a very good and useful tool.
2021-09-01
What do you like best?
I love the whiteout option and the text box. Also the drag option to move all text over.
What do you dislike?
I have no complaints at this time. Have had no issues since we first started using PDFiller.
Recommendations to others considering the product:
Purchase it
What problems are you solving with the product? What benefits have you realized?
I am whiting out personal information, Printing documents with additional text not on it to avoid printing more than necessary.
2020-08-06
Easy to import edit- wished I had this a long time ago!
I was desperately trying to find a way to send my Doctor forms. Scanner/Printer was knocked out from the storm.
2020-07-23
The customer support is outstanding
The customer support at pdfFiller is outstanding. They responded quickly, were incredibly kind, and handled everything with great professionalism. It’s clear they truly care about their users. Highly recommended!
2025-05-25
Password Protect PDF on Linux
Protect your PDF files effortlessly with our Password Protect PDF feature on Linux. You can have peace of mind knowing your sensitive documents are safe from unauthorized access.
Key Features
Easy-to-use interface for quick file protection
Customizable password options for enhanced security
Compatibility with various PDF file types
Batch processing for protecting multiple files at once
Cross-platform support, making it suitable for all Linux distributions
Potential Use Cases and Benefits
Secure personal documents like tax returns or bank statements
Protect business reports and financial data from prying eyes
Ensure confidentiality in sharing sensitive files with clients or partners
Comply with privacy regulations by securing customer data
Safeguard academic papers and research findings from plagiarism
With our Password Protect PDF feature, you solve the common problem of data exposure. Whether you work from home or in an office, it's essential to keep your files safe. By implementing password protection, you reduce the risk of unauthorized access. Take control of your document security today.
Video instructions on how to Password Protect PDF on Linux
#1 usability according to G2
Try the PDF solution that respects your time.