Password protect large PDF files For Free
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Up to 100 MB for PDF and up to 25 MB for DOC, DOCX, RTF, PPT, PPTX, JPEG, PNG, JFIF, XLS, XLSX or TXT
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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
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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:
Quick and easy editing features. Not sure how to utilized the signing of documents feature, but will figure it out. I also would like to delete old docs no longer needed. An online class for the software use would be appreciated.
2018-04-30
It works good but is clumsy to figure out some things should be easier like saving an altered document to your computer. Currently I have to pretend to print it then in the printer tell it to save as a PDF to my computer instead.
2019-01-09
Awesome Product
The software is very user friendly. It's a great value for the cost. Makes my life so much easier
None so far. The software is pretty awesome
2019-10-01
easy to use pdf filler
I use my pdffiller for all my real estate needs!
I like the convenience of uploading docs from the internet
I don't like how files are stored, it requires too much renaming.
2019-01-26
John from the Support Team was great to…
John from the Support Team was great to work with. He answered my question in less than 30 seconds and I had the form need to continue processing an export application. Well done and thanks.
2023-08-06
Excellent customer service!
I used the pdfFiller when I had no access to a printer- it was efficient and easy to use. However this was a one off and thought I had cancelled my subscription. When I saw I was being charged I was concerned as I have no need for the service on a subscription, however I contacted pdfFiller customer services explaining my situation and I received a very reassuring reply from Max and the pending transaction was cancelled immediately. If I ever need the service again I wouldn’t hesitate to use pdfFiller or recommend them. Outstanding customer service.
2021-07-29
The filling of the spaces in blank when there are squares are a bit tedious. One has to center the square and it is not always neat and aligned with the other characters one enters. It is slow.
2021-07-18
Easy to import edit
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
Good product for PDF edit
The product itself was great for my needs. Especially was useful the client support, the responce was swift and satisfactory.
2025-02-21
Password Protect Large PDF Files
Secure your important documents with our Password Protect feature for large PDF files. This tool ensures only authorized users gain access, keeping your data safe from prying eyes.
Key Features
Simple password setup process for easy use
Strong encryption to enhance document security
Ability to unlock files easily with the correct password
Compatible with various devices and software
No file size limitations to accommodate your needs
Potential Use Cases and Benefits
Safeguarding sensitive financial reports
Protecting client data in professional environments
Securing personal documents stored online
Preventing unauthorized changes to contracts
Ensuring privacy for educational materials
This feature directly addresses your need for document security. By enabling password protection on large PDF files, you mitigate risks such as data breaches and unauthorized access. Now, you can confidently share your files, knowing they are well-guarded.
How to Password protect large PDF files - video instructions
#1 usability according to G2
Try the PDF solution that respects your time.