Lock PDF and Encrypt PDF for iOS Gratis

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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

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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.
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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.
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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.
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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.
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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.
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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+
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4.6/5
average user rating
4M
PDFs edited per month
9 min
average to create and edit a PDF
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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 am pleased that I can resend my document to a recipient because I initially documented the recipient's email address incorrectly. I was able to find out how to do this with all the helpful tabs and support information
Cheryl
2015-11-30
What do you like best?
I like how easy it is to take a PDF and be able to type what I need to, change colors and fonts
What do you dislike?
I wish that the erase tool would be able to go in different directions, not just left and right but to be able to use it more freely to erase easier.
What problems are you solving with the product? What benefits have you realized?
benefit in using this for my business is keeping documents clean and not having to print them out hand write on them scan them back in and email it, I can do it all in PDFfiller and keeps my documents clean, and is a lot easier.
User in Real Estate
2020-02-05
Easy and time saving I use it to fill out government and medical forms for personal reasons. It could be used for any form you might need to complete. It's very easy to use and has tons of forms available. You can upload unique forms and it works great on those too. I have had some issues finding forms I've completed.
Steven S.
2019-03-12
I have been trying to cancel my… I have been trying to cancel my subscription for months. One of the problems is that I can't find the account. I have tried all of the email addresses that I use and can not find it. I have sent emails and wrote tickets trying to get some help but have recieved absolutely no response. I am paying $50 a month for a service I am unable to use or cancel. I was able to finally talk to someone who helped me find the email the account was under, canceled it for me and refunded the charges. The whole thing was quick and painless and I got the best possible outcome and that gives the 5 stars in my book. Thank you pdffiller for taking the time to hear my problem and helping finally find a resolution.
Tabetha Jollimore
2024-02-06
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.
Melissa H
2022-04-05
Being a small business Being a small business, it was so delightful to be able to find and fill 1099s for my employees and not have to pay money up front. Thank you pdfFiller!
Donice Blanton
2022-02-01
Great tools for pdf editing Great tools for pdf editing, very easy to use and the final documents look so professional. Honest company with a good back-office team.
L. Loriel Liao
2021-09-20
This is getting a 4 star review as for… This is getting a 4 star review as for today helped me accomplish allot of paper work in short amount of time love this product
Ronald Wallace
2021-06-09
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!
Elyssa
2020-05-21

Lock PDF and Encrypt PDF for iOS

Protect your sensitive information with the Lock PDF and Encrypt PDF feature for iOS. This tool ensures that your documents remain confidential and secure, allowing you to share them without worry. You deserve peace of mind when handling important files.

Key Features

Easily lock your PDF files with a secure password
Encrypt documents to prevent unauthorized access
User-friendly interface for seamless operation
Compatible with various PDF formats
Effortlessly share locked PDFs via email or file sharing services

Potential Use Cases and Benefits

Secure personal documents like tax forms or identification
Protect business reports and client information
Safeguard academic papers when sharing with peers
Maintain confidentiality during online interviews or presentations
Comply with data protection regulations by securing sensitive files

This feature solves your problem by providing a straightforward solution to protect your important documents. By locking and encrypting your PDFs, you can share files with confidence, knowing that only the intended recipients can access them. With Lock PDF and Encrypt PDF for iOS, you take control of your data security.

Get documents done
from anywhere

Create, edit, and share PDFs even on the go. The pdfFiller app equips you with every tool you need to manage documents on your mobile device. Try it now on iOS or Android!

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
It's important to ensure other people can't easily unlock your phone especially if you store private photos in the standard Hidden folder in the Photos app. You can add a passcode to protect it just go to Settings > Face ID and Passcode (or Settings > Touch ID and Passcode, on older devices and iPad).
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.
Run the file manager app on your iPhone or iPad. Tap Settings at the bottom, select Enable Password, you will then be able to set a password to protect any sensitive data on the phone.
Open the Protection panel. 2. Click Encrypt, and select Encrypt With Password. Confirm that you want to change the security of the document.

How to Lock PDF and Encrypt PDF for iOS - video instructions

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