It only takes a few clicks to Lock PDF in Microsoft’s mobile OS Gratis

Drop document here to upload
Select from device
Up to 100 MB for PDF and up to 25 MB for DOC, DOCX, RTF, PPT, PPTX, JPEG, PNG, JFIF, XLS, XLSX or TXT
Note: Integration described on this webpage may temporarily not be available.
0
Forms filled
0
Forms signed
0
Forms sent

Discover the simplicity of processing PDFs online

Card illustration
Upload your document in seconds
Card illustration
Fill out, edit, or eSign your PDF hassle-free
Card illustration
Download, export, or share your edited file instantly
Top-rated PDF software recognized for its ease of use, powerful features, and impeccable support
Trust Seal
Trust Seal
Trust Seal
Trust Seal
Trust Seal
Trust Seal

Every PDF tool you need to get documents
done paper-free

Card illustration

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.
Card illustration

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.
Card illustration

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.
Card illustration

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.
Card illustration

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.
Card illustration

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:
Impressive features and easy to use. My only gripe is that there appears to be no way of changing the date function to day/month/year, but it's just as easy to enter the date manually
Jonathan G
2019-03-22
What do you like best?
Te ease of use is amazing. I also like that I can easily share it to my Dropbox.
What do you dislike?
I have yet to find a feature that I dislike. I think PDFfiller has covered all of the bases.
What problems are you solving with the product? What benefits have you realized?
I use it to modify my technical data sheets when they need to be updated.
Chris Thompson Sr.
2018-12-31
Tree saver My son has to do virtual school with everything going on at the moment. This is great for filling out worksheets instead of printing and killing trees
elle
2020-04-02
Useful form creation and library tools Makes confirming client changes and work ideas more fluid with notifications of form signing. Wide tool set and excellent selection of preexisting forms. So many forms and flexibility to edit and create and cross share forms with clients, and the addition of the iOS app makes for a great always on solution and current information. Price is ok, for single users but for larger firms it may be a consideration. So far no other issues
Rimi A.
2018-12-12
Bravo! I was just on the phone and wrote back to congratulate the customer service rep on my call. I was very nervous about making sure my document was sent properly because a 5 year deal is riding on it. She helped calm me and understand things were handled properly. Bravo!
Don Reed
2022-10-07
VERY EASY TO USE PLUS ONE SUGGESTION VERY EASY TO USE. THE ONLY THING I THINK NEEDS TO CHANGE IS THAT WHEN I SAVE THE DOCUMENT, INSTEAD OF SAYING IRS FORM 940 (OR SOMETHING CLOSE TO THAT) I THINK THE YEAR OF THE FORM THAT WAS WORKED ON. FOR EXAMPLE: IRS FORM 940 2019
Virginia Cammarano
2022-06-16
Great program for the price. I save many documents as PDF's and there ar times when one word or sentence needs to be changed. It is so simple, open the doc, make the correction and save,
Isabel M
2022-01-21
Most of our Company Documents are… Most of our Company Documents are shared in .pdf format so having the ability of edit them without the need to print out and then fill them in is my reason for the 5 star rating. The interface is simple to understand and easy to navigate.
Thomas McQuaid
2020-10-14
I have used it several times and it works great! I like the eSign feature that allows me to create important documents and sned them via email to get signed.
Jose
2020-05-07

Do business more effectively and Lock PDF in Microsoft’s mobile OS

When it comes to working with files in Portable Document Format, different operating systems have different negative aspects. Some of them only allow for the making of minor edits, and some have no default solutions for doing so at all. Avoid spending hours looking for a program that’s compatible with your device and allows you to Lock PDF in Microsoft’s mobile OS.

Simplify your workflow and use pdfFiller, a powerful solution for efficient document management. Just set up your network and navigate to pdffiller.com to reach our professional online editing tool that doesn’t force you to install clunky tools or software.

Why should you choose to Lock PDF in Microsoft’s mobile OS in a web browser:

01
Simplicity. Start editing PDFs like a pro without tutorials. The interface is user-friendly and straightforward.
02
Flexibility. Stop worrying about compatibility issues. The tool works well on all major platforms.
03
Security. Feel safe with bank-level security and compliance. The data uploaded and added is secured with advanced encryption methods.
04
Validity. Utilize legally-binding signatures. The signatures created in pdfFiller can be used in court.
05
Integrity. Combine the PDF editor with a wide variety of available clouds, CRM systems, or databases. The vast number of cloud storage available makes moving documents fast.

Boost document management-related duties with the right tools and features with our app. Improve your workflows today!

Lock PDF Feature in Microsoft Mobile OS

The Lock PDF feature in Microsoft’s mobile operating system offers a secure way to protect your important documents. With this feature, you can ensure that only authorized users can view, edit, or share your sensitive PDF files.

Key Features

Secure PDF locking with customizable passwords
User-friendly interface for easy document management
Full compatibility with various PDF readers
Simple process to unlock or modify access
Regular updates to enhance security measures

Potential Use Cases and Benefits

Protecting financial documents and contracts from unauthorized access
Ensuring client confidentiality by securing sensitive information
Safeguarding personal documents, such as passports and identification
Sharing documents with people you trust while keeping them safe
Managing work-related files without risking sensitive data exposure

By using the Lock PDF feature, you can prevent unauthorized users from accessing your important files. This solution gives you peace of mind, knowing your information stays secure while you share documents within a trusted network. Take control of your confidential data and enhance your document management today.

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!

Video instructions on how to Lock PDF in Microsoft’s mobile OS

#1 usability according to G2

Try the PDF solution that respects your time.
Trust Seal
Trust Seal
Trust Seal
Trust Seal
Trust Seal
Trust Seal