Lock PDF and Edit PDF for iPhone Gratuito

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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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Upload your document in seconds
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Fill out, edit, or eSign your PDF hassle-free
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Download, export, or share your edited file instantly
Top-rated PDF software recognized for its ease of use, powerful features, and impeccable support
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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+
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 able to fill out and print a very important document that was not allowing me to fill it out or print it and the chat team was available really late at night and helped me to do it inside PDF Filler.
Maria S
2015-11-14
This tool is AMAZING!!! I've wasted so much time over the years bringing images into Word and overlaying text boxes to accomplish what this tool does SO easily. Thank You! One suggestion: when I click on a document page on the left side of the screen, it would be great if that page opened roughly where I clicked. That is, if I click on the bottom of the page image on the left, it would be great if the page opened with the bottom showing, rather than having to scroll down to the bottom. This would make it the same as Acrobat.
Anonymous Customer
2017-01-20
I am happy I have found your company. I appreciate your east steps to follow. I don't know if I am not understanding how to save each 1500 I complete as I need them to enter new dates as each week comes to bill.
Kathy
2018-08-16
I find it easy to use great system ! I don't like the when people on my site go to my billable form that they can't list go right to the for. Like Hellosign.
bryan t
2019-10-20
Very great tool for any business… Very great tool for any business regardless of size. It makes things so easier to be able to complete transactions seamlessly.
Michaela Edwards
2019-05-08
It was easy to sign and save... It was easy to sign and save my document with no interruptions or gemecs in between. I thought it would of been hard to get it sent via email but that was even more of a breeze.
Lyndsy Truesdell
2024-07-04
Super simple to use. There are only a few things that could use some tweaking like the sizing of the box for the fillable text could be a little simple to make smaller.
Cera P
2022-01-12
No printer no program I don’t have a printer and have to email any thing needed printing to my daughter I was able to send my document to her email address to get printed.Thank you
Sandra D Collins
2021-03-26
PDFfiller is just great tool to use to… PDFfiller is just great tool to use to find just about any documents and the ability to create fillable PDF files are great.
Isaac Davis
2020-04-19

Lock PDF and Edit PDF for iPhone

Secure and modify your important PDF documents with the Lock PDF and Edit PDF feature for your iPhone. This tool ensures you control your files, keeping sensitive information safe while allowing necessary modifications.

Key Features

Password protection for PDF files
Easy editing of text and images within PDFs
User-friendly interface designed for iPhone
Option to merge multiple PDFs into one document
Ability to annotate and highlight PDF content

Potential Use Cases and Benefits

Perfect for professionals managing confidential files
Ideal for students editing lecture notes or research papers
Useful for anyone needing to share protected documents
Great tool for legal and financial documents requiring modifications
Helpful for creative individuals making presentations or reports

This feature addresses your need for security and flexibility. By locking your PDF with a password, you guard against unauthorized access. Editing capabilities allow you to update information quickly, helping you stay efficient and organized. Regain control over your documents and enhance your productivity with this essential PDF tool for your iPhone.

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
Once the PDF file opens in Documents app, tap on the Menu button (three dots) in the top right corner to bring up menu at the lower section of your iPhone screen. Choose Set Password. Then type in the same password twice. Finally, hit the Set button to confirm and encrypt your PDF file on iPhone or iPad.
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.
Open a PDF document. Tap Edit PDF on the top toolbar. Select Text. Tap a paragraph to edit the text in it.

Video Review on How to Lock PDF and Edit PDF for iPhone

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