Lock PDF and Reorder PDF for Mobile 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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Last updated on Sep 25, 2025

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Combine multiple PDFs into one.
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Rearrange pages in a PDF document.
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Compress PDFs to reduce their size.
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Convert PDFs into Word, Excel, JPG, or PPT files and vice versa.
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Start with a blank page.
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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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Users Most Likely To Recommend - Summer 2025
Grid Leader in Small-Business - Summer 2025
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Regional Leader - Summer 2025
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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 have to tell my dr. to use this. Tired of his hand-printed & copied over & over stuff & can fax it immediately since he snail mails everything. Highly recommend to anyone who can use all the features. Added plus is that it's so easy to use. It eliminates paper, toner and postage and well worth the price for anyone who needs all the bells & whistles (which he does!!). Thank you, PDFfiller !!
Anonymous Customer
2014-09-19
In my opinion this application is very powerful, however not so intuitive, and I had to spend an inordinate amount of time in chat with technical support personnel. I would be happy to explain further.
David B
2016-12-29
So far, so good. I love the fact that, before I paid--my documents were always saved and not lost. So that later, when I was ready to pay, I didn't have to start over. That was awesome.
CAnne
2017-05-22
Used PDF Filler to create 1099's for caregivers for my aunt and uncle. It was a good experience overall. I wish that I did not have to re-enter my information again for each of the 1099's.
Ernest D
2018-01-29
Im just learning how to use this program, but so far it seems really cool. But im having trouble with printing my document. and it is not very clear on how to do that. I emailed it to myself and couldnt find it in my em ail
Michelle
2018-07-14
What do you like best?
It helps me to create templates for reuse
What do you dislike?
Fonts are hard to match when inserting wording
Recommendations to others considering the product:
Much easier for documents than in design
What problems are you solving with the product? What benefits have you realized?
Recreating documents/leases that are time consuming if I have to retype them.
Becky Jones
2019-05-21
the storage of files was a bit of a issue. every time i needed to look at the files i would need a code, a bit time consuming but otherwise a good product.
Laurie P
2023-08-29
This service is very user friendly and… This service is very user friendly and offers a wide range of editing tools. Perfect for filling out paperwork and editing invoices. For chromebook it's better use the service on a web browser rather than the app.
Jonathon C
2022-04-26
I'm not very savy with technology, I wanted to upgrade... I'm not very savy with technology, I wanted to upgrade my abilities and ease my work. I encounter PDFfilled easy to use the most imporatnt live help! I will keep learning. I'm very satisfied.
Sandra M.
2020-08-11

Lock PDF and Reorder PDF for Mobile

Protecting your PDF documents and organizing their content is vital in today's digital world. Our Lock PDF and Reorder PDF for Mobile feature ensures you maintain control over your documents while keeping them accessible and well-structured.

Key Features

Lock PDF files with a password to prevent unauthorized access
Easily reorder pages within your PDF with a simple drag-and-drop interface
Support for multiple file formats for seamless integration
User-friendly design for mobile devices
Quick and secure unlocking if you forget your password

Use Cases and Benefits

Protect sensitive business documents while sharing with colleagues
Reorganize pages in an e-book for a custom reading experience
Prepare legal documents in the correct order to streamline workflows
Safeguard personal information in resumes or portfolio files
Facilitate collaborative projects by sharing orderly PDF reports

You can tackle common document management problems with our feature. Locking your PDFs gives you peace of mind when sharing files, while the reordering option allows you to adjust documents as needed quickly. This functionality helps you maintain professionalism and accuracy in all your digital communications.

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
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.
Choose Tools > Protect > Encrypt > Remove Security. Remove Security: The options vary depending on the type of password security attached to the document. If the document has a Document Open password, click OK to remove it from the document.
Open the PDF Utilities app and tap Select next to Select PDF. Once you've located your file, select it and tap Start. You'll get a pop-up asking you enter the PDF password.
Upload your PDF to the Merge Tool. Click 'Page Mode', where you will see a preview of every single page from within your PDF. Move pages around through drag and drop. Click 'Merge' to perform the task. Don't forget to download your newly rearranged PDF!
Install the app from Google Play > tap ADD > choose where to select the documents and import the file > pick the file > hit SELECT > tap the three dots button at the bottom of the page > choose Move page to position to rearrange the PDF pages.

How to Lock PDF and Reorder PDF for Mobile - video instructions

#1 usability according to G2

Try the PDF solution that respects your time.
Users Most Likely To Recommend - Summer 2025
Grid Leader in Small-Business - Summer 2025
High Performer - Summer 2025
Regional Leader - Summer 2025
Easiest To Do Business With - Summer 2025
Best Meets Requirements- Summer 2025