Lock PDF and Encrypt PDF for iPhone For Free
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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:
I was a first time user and it was late at night and the PDFfiller.com information was a little confusing. I had problems opening the document on my computer as it was not readable. I reported this via live chat around 12:45 AM and it was resolved in about 10 mins or so. I was happy with the outcome.
2015-01-27
Great product.
Good interface gives you all the options you need in one place. Clear and easy to understand. The only downside is remembering its a browser only interface, remembering the product name and having to navigate to the URL to begin. Not an issue for a daily user, but if you use only intermittently like I do, I have to make myself a reminder. To that end, I think its a little expensive for a casual user; but I do still like the interface so much that it overrides my concern on cost.
2015-12-02
Fan Bloody Tastic on my CHROMEBOOK, nearly real time and it would be 5 stars. Realtime not yet available in this part of Australia. PERFECT fit for 100% cloud and paperless. Love it, just re thinking it and it is now totally 5 stars. Thanks :)
2016-03-07
I feel this is just what I've been looking for and it's not to complicated like some of the other sites and you still don't get what your looking for . I didn't get get what I wanted on other sites. That's why I purchased for a year because this works good with my busness.
2018-03-23
What do you like best?
I have tried many different programs. I find PDFfiller to be the easiest to use for anything re: PDFs and to get signatures on paperwork.
What do you dislike?
It is a little more expensive than some of the other programs
Recommendations to others considering the product:
I highly recommend it for people who are not technical experts
What problems are you solving with the product? What benefits have you realized?
Signing documents, converting WORD files, editing PDFs
I have tried many different programs. I find PDFfiller to be the easiest to use for anything re: PDFs and to get signatures on paperwork.
What do you dislike?
It is a little more expensive than some of the other programs
Recommendations to others considering the product:
I highly recommend it for people who are not technical experts
What problems are you solving with the product? What benefits have you realized?
Signing documents, converting WORD files, editing PDFs
2019-08-22
An Alternative To Adobe
Run a small business without additional Adobe and DocuSign subscriptions....
It is a great value and it surprises me with new features on a quarterly basis. When I need new functionality I search for it and am no longer surprised when it is there!
I wish it would break down .PDF text into MS Word documents.
2019-09-18
I super recommend it!
Editing PDFs when you don't have the source document's has never been easier. You can erase what's written and replace it.
What I like the least is that this software is a little bit slow sometimes. But overall, I recommend it.
2018-04-04
I've been really happy with how easy it…
I've been really happy with how easy it is to find certain forms, then fill them in and print them, but I wasn't able to find a few forms I needed and had to look for them elsewhere. I'd be ecstatic if all the forms I needed were all in one place.
2023-10-26
I really like the service a lot. It is user friendly and intuitive. I like that this also comes with Sign Now so that I can have all the forms I need for my business easy and accessible for me to get electronically signed.
I would give it 5 starts except in the Sign Now program the program should default to the text box for people to sign and then have the live signature be on a separate tab, so basically reverse what it is now. It is hard for some people to get to the text box for them to type their signature.
I use this all the time in my business and I would recommend it.
2020-10-18
Lock PDF and Encrypt PDF for iPhone
Protect your sensitive documents with our Lock PDF and Encrypt PDF features on iPhone. Enjoy peace of mind knowing that your important files are secure from unauthorized access.
Key Features
Password protection for PDF files
Easy-to-use interface for quick encryption
Compatibility with all PDF readers
No size limit on files you can secure
Option to remove security for easy sharing
Potential Use Cases and Benefits
Secure business contracts and agreements before sending them
Protect personal documents, such as tax forms or medical records
Safeguard sensitive information when traveling
Ensure only authorized persons can view confidential content
Easily share secure files with clients or colleagues
With our Lock PDF and Encrypt PDF features, you can solve the problem of document security. By encrypting your files, you reduce the risk of data breaches and unauthorized access. Keep your information safe and control who can read your documents.
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
Can you lock a file on iPhone?
If you do not want to compress files, but merely lock files and prevent them from authorized access, you can choose the Lock option. After that, you will be able to choose a 4 digits password or passcode to lock the data. You can't delete locked folder which is protected with a password by File Master on iPhone.
How do I password-protect a PDF file on my phone?
Start by downloading the app from Google Play. Next, open it > password protection > import the PDF from your device memory. If you don't see any directory, clear the app data and try again. Now, you'll see two password option owner password and user passwords.
How do you encrypt files on iPhone?
MORE: Mobile Security Guide: Everything You Need to Know.
Tap on your device's Settings icon.
Tap on the “General” tab.
Under “General,” scroll down to the option “Touch ID & Passcode.”
Under “Touch ID & Passcode,” turn “Simple Passcode” on or off.
Set a passcode.
How do I encrypt a PDF with a password?
Open the PDF and choose Tools > Protect > Encrypt > Encrypt with Password. If you receive a prompt, click Yes to change the security. Select Require a Password to Open the Document, then type the password in the corresponding field.
How to Lock PDF and Encrypt PDF for iPhone - video instructions
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