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Upload your document in seconds
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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

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:
It is a desire brought to life. I don't have much experience with PDF accounts, so I couldn't tell you in detail about how good this account works. However, it has done what I needed it to do w when I needed it to do so.Thanks. :-)
Brian
2014-09-13
PDFfiller is very easy to use. Just upload your form and complete. There is really nothing much more to think about. Ease of use is what it's all about!
Karen
2016-05-29
So far it's been pretty good although I haven't figured everything out yet as far as the features but I'm working on it. I like it so far though for what I needed it for. I will continue to pay for my subscription and continue using the service. Thanx your service has been and will continue to be a BIG HELP to me.
Kendell M
2017-04-16
I really like the application a lot. I am finding the fact that you do not have a field value setting which comes in handy for allowing a Check Mark to have a Value and Calculate costs based on Check Marks or Drop Down Menus. I also would love a copy and paste a single field, this comes in handy for repetitive drop down menus. Prepopulating a field from an earlier field value would be great in helping people not have to enter same information more than once.
John L
2017-04-28
I cut off the bottom part of the document. I'm trying a reprint, now and will select "fit to page" on my printer preferences to see if that works.
Anonymous Customer
2018-03-19
So far I have done only the basic I feel with this program. I am sure there are far more things I could be doing with this but at this time I am still learning
June L T
2022-02-10
Ryan was extremely patient and persistent to solve the issue Ryan was beyond patient with me to solve my issue. I really felt like he was determined to have me understand the instructions he was giving me towards the solution. He used a few of approaches. One of which was sending me a visual with arrows.....That worked!!!! His patience and persistence is refreshing and truly appreciated.
Liezette Abel-Ruffin
2021-10-13
Trust PDF Editor Overall, it's an excellent piece of software to utilize in your business or for personal document editing needs. Allows for easy and quick editing of pdf forms so I can collaborate, sign, fax and send documents to team members and clients. Very helpful. I have not any cons with the use of this software thus far, it's done everything i've asked of it with ease.
Graig S.
2020-06-27
Very easy to use, only thing is learning for a beginner is how to save the files so that they are editable in Microsoft word, and the work of art is not all over the place in the word document, thanks a lot! 10 stars for the service!
sterling c
2025-04-08

pdfFiller — a simple tool to Merge and Lock PDF

If you have ever encountered issues with trying to Merge and Lock PDF using the online solutions only, you're not the only one. Hours were spent switching back and forth between multiple solutions. Use pdfFiller to get things done better and automate such processes.

Why pdfFiller? It's a professional, online PDF editing tool that actually works from the cloud. Just open a browser, log in to your account, pick a form template, and Merge and Lock PDF in no time. Done online, the process of editing files in PDF is simple and fast, smooth actually. An advanced set of tools allows you to do what you need and more. Here are the most helpful tools you can use with your documents on pdfFiller:

01
design. Certify forms or agreements straight from your device
02
Extensive export. Send a document by email or fax, transfer it to the cloud, or download in one of the available formats: PDF, DOCX, XLSX, PPTX, and JPG
03
Templates. Create reusable forms and fill them out as many times as you need
04
Fillable fields. Insert to let others to type information
05
Layout management features. Rotate, add, or delete form pages to make it work for your particular situation
06
Watermarks. Protect your template

pdfFiller is not only handy but keeps the data protected. Your information is stored and transferred among the web servers strictly following the GDPR standards, and encrypted. Thanks to the two-factor authorization, you don't need to go another day with your data exposed to unwanted third parties.

Value your time and get started with pdfFiller for a more streamlined approach to how to Merge and Lock PDF.

Merge and Lock PDF Feature

The Merge and Lock PDF feature simplifies your document management. With this tool, you can easily combine multiple PDF files into one secure document. This feature ensures your files are organized, accessible, and protected.

Key Features

Combine multiple PDF files into one document
Lock merged PDFs with a password for security
Preserve original formatting and quality
User-friendly interface for effortless merging
Quick processing time for efficient workflow

Potential Use Cases and Benefits

Organizing documents for presentations or meetings
Creating a secure document for sensitive information
Simplifying the sharing of related files with colleagues
Streamlining archives for easy retrieval and management
Enhancing collaboration on projects by merging contributions

This feature addresses common issues, such as difficulty in managing multiple files or securing sensitive information. By allowing you to merge and lock your PDFs, you can keep your documents organized, while also safeguarding your data. Experience the convenience of having everything in one secured file, making your life easier.

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!

Merge and Lock PDF Video Review

#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