Last updated on
Jan 16, 2026
How To Secure PDF Online 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.
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.
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What our customers say about pdfFiller
See for yourself by reading reviews on the most popular resources:
I can accomplish most of what I need, but can't use the erase feature unless we pay another9.99 a month. I think that's excessive. Other than that, I like the system.
2015-04-24
I am a slow learner...give me more time.I am 68 and not internet literate. It's better for me to fill out Government Forms through PDF Filler than in my own handwriting. It look very professional and understandable. It's like I got a Secretary. I would like to learn more about faxing and emails.
2016-12-05
I needed to find a template that I could use for Certified Payrolls for a small job we are working on. PDFfiller has helped me meet my deadlines. It also continues to help me as we work on this project by duplicating my existing Certified Payroll Form and updating it week by week so I do not have to retype information again. It lets me cut, copy, and paste just like I was working on a Word document; this feature saves me a lot of time.
2018-05-16
Amazing!!! this is truly a miracle come to pass in my business. So friendly user, can do so many task at once within PDFfiller at once. Life saver, definitely.
2018-08-29
What do you like best?
The ease of adding fields etc to current
What do you dislike?
Would like to visualize the entire page on screen.
What problems are you solving with the product? What benefits have you realized?
Adding areas for signatures to existing documents. Ease of redacting documents as necessary to share.
The ease of adding fields etc to current
What do you dislike?
Would like to visualize the entire page on screen.
What problems are you solving with the product? What benefits have you realized?
Adding areas for signatures to existing documents. Ease of redacting documents as necessary to share.
2018-01-02
Pdffiller is the best
Pdffiller is the best, i tried quite a few trial versions and those who claim they are free but it took me days to redact one document. With pdffiller i redacted my documents in minutes..Really good, powerful and easy to use.
2019-11-18
Fill in the Blank
Love what this has done for making my job so much easier at a very reasonable rate.
For my business this was and is the best tool I have for putting together insurance reports. Build or scan in a template and fill in the blanks when you need to send a report out. BAHM! DONE!
Probably something I have not spent enough time to figure out yet but as of now each time I fill in a blank template it auto saves it so my original always has to be cleared before new entry.
2018-09-26
What do you like best?
Able to quickly modify documents and create professional presentations.
What do you dislike?
Can't really think of any negatives. Maybe wish it were free.
What problems are you solving with the product? What benefits have you realized?
Easily convert invoices into delivery tickets. Cuts down on time spent creating documents.
2021-02-16
Ryan - Support Team
Ryan on the Support Team was extremely helpful and patient. He walked me through all of the steps to complete the form to my satisfaction. Thank you Ryan for teaching me!
2020-05-21
How-to Guide
How to Secure PDF Online:
01
Download your document using pdfFiller`s uploader
02
Select the Secure PDF Online feature in the editor`s menu
03
Make all the needed edits to the file
04
Push the orange “Done” button in the top right corner
05
Rename your template if it`s necessary
06
Print, save or email the document to your computer
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 PDF from being copied online?
Protect PDF from Copying Online If you want to protect your PDF online, then the Hip tool is the best option. On their website, select the “Protect PDF” option to upload your PDF document, then enter a password to encrypt the file.
How do you lock a PDF, so it Cannot be copied?
Suggested clip
How to Prevent Copying Content in a PDF Document — YouTubeYouTubeStart of suggested client of suggested clip
How to Prevent Copying Content in a PDF Document — YouTube
How do I password protect a PDF for free?
First, open the PDF document and provide the password it requires. Click the Print button on the PDF toolbar while viewing the password-protected document. Click the Change button under Destination and select Save as PDF.
How do I password protect a scanned PDF document?
Open PDF.
Click Properties.
Go to Security tab.
Security Method field, change to 'Password Security'
Password Security Window will pop up.
Then check the 'Require a password to open the document'
Enter a password.
Click OK.
How to Secure PDF Online - video instructions
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