Document Application Compare Online 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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Discover the simplicity of processing PDFs online

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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
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

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:
Easy to use but should advise up front that paid membership is required as once document is completed a person is pretty much obligated if they want to send or print...
Stephanie A. J
2016-03-31
Have been able to add signatures change dates and update pertinent information on the documents. Have not used extensively, but have been able to do everything I wanted so far. Good product!
Clem
2017-04-30
It is impossible of find the document I am seeking and all I am getting is a WASTE OF MY TIME!!! The website is incredibly difficult to navigate!!!!! I don't think I am getting much value for the money I spent to print just one document!!! After this horrible experience SUPPORT STAFF was able to assist me in accessing the necessary document and getting it filled out to me the deadline. SUPPORT STAFF is very knowledgeable and were able to resolve the problem quickly!!! Count me a happy customer!!!
Sylvia C
2018-09-02
When filling out 1099-misc form, it would be beneficial for the information on the first page be copied throughout the other copies, as they are the same.
Kevin L T
2019-02-03
What do you like best?
I work in real estate, so being able to fill-in and complete pdf docs is part of the daily life.
What do you dislike?
Some of the features are limited to premium service only. I'd like to see more of these included in the standard package.
What problems are you solving with the product? What benefits have you realized?
Quickly and neatly complete documents, forms, contracts.
User in Real Estate
2019-05-21
Excellent PDF filling software I really recommend this software, just get a good internet connection or else you might get a bit frustrated. This software is really good for filling pdfs my clients send me and then sign them at ease, and the fact that you can use an extension for your mail and edit online without having to download saves a lot of time Living in a country where slow internet connection is a constant problem, working with this software can be a pain sometime.
Alejandro A.
2018-05-17
It took a while to get used to and I had to have several chats with tech support over several weeks. I subscribed, but I still ended up with a free account that I had to get them to delete. I had to check my login box to ensure I was in my subscription account.
Dave S
2023-02-20
I've been using PDFfiller regularly for over 2 years now, and it works wonderfully. I'm able to upload documents, add fillable lines, and get electronic signatures seamlessly. Customer service is also great - prompt and friendly in attending to any questions or issues. Makes running my business that much easier.
Monica K
2022-05-05
A Great alternative to Adobe pdf's form… A Great alternative to Adobe pdf's form flow, liked so much opened a business account because of other features that are well suited for online small businesses.
Dwight Landry
2021-04-21

Instructions and Help about Document Application Compare Online For Free

Document Application Compare: edit PDFs from anywhere

The Portable Document Format or PDF is a well-known document format for a variety of reasons. It's accessible from any device to share them between desktops and phones with different display resolution and settings. PDF files will always appear the same, regardless of whether you open it on a Mac, a Microsoft one or use a phone.

The next point is security: PDF files are easy to encrypt, so it's risk-free to share any confidential data with them. That’s why it is important to choose a secure editing tool for working online. Particular platforms offer opening history to track down those who read or completed the document before without your notice.

pdfFiller is an online document creating and editing tool that allows to create, modify, sign, and share PDF using just one browser window. Thanks to the integrations with the most popular solutions for businesses, you can upload an information from any system and continue where you left off. Forward it to others by fax, email or via sharing link, and get notified when someone opens and completes it.

Use powerful editing tools such as typing text, annotating, and highlighting. Add fillable fields and send documents to sign. Change a page order. Add and edit visual content. Ask your recipient to complete the fields and request an attachment. Once a document is completed, download it to your device or save it to cloud.

Get your documents completed in four simple steps:

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Start with the pdfFiller uploader.
02
Proceed to editing features by clicking the Tools tab. Now you can change the document's content.
03
Insert additional fields to fill in specific data and put an e-signature.
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Finish editing by clicking Done and choose what you want to do next with this PDF: save it to your device, print or send via email, fax and sharing link.

Document Application Compare Feature

The Document Application Compare feature helps you review and assess different versions of your documents quickly and easily. By using this feature, you can streamline your workflow, enhance collaboration, and ensure accuracy in your documents.

Key Features

Side-by-side comparison of documents
Highlighting of differences between versions
Easy navigation between changes
Support for multiple document formats
Export options for easy sharing

Potential Use Cases and Benefits

Legal professionals can track changes in contracts, ensuring compliance.
Editors can review manuscript revisions, maintaining the integrity of content.
Project managers can compare project proposals, making informed decisions.
Researchers can check amendments in reports, ensuring accuracy in data.

This feature solves your problems by saving you time and reducing the risk of errors. Instead of manually checking each document, you can rely on the Document Application Compare feature to highlight what has changed. This way, you can focus on making thoughtful decisions rather than getting bogged down in details.

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
Open the documents that you want to compare. On the Review tab, in the Compare group, click Compare. Click Compare two versions of a document (legal black line). Under Original document, browse for the document that you want to use as the original document.
With the all-new Compare Files tool, you can now quickly and accurately detect differences between two versions of a PDF file. Choose Tools > Compare Files. Click Select File at left to choose the older file version you want to compare. Click Select File at right to choose the newer file version you want to compare.
First, open Word and any document file. (It can be one of the ones you're comparing, another document entirely, or simply a blank project.) Click the Review tab at the top of the screen to open the ribbon menu, then click the Compare button it will be near the right side of the menu.
Open one of the two versions of the document that you want to compare. On the Tools menu, point to Track Changes, and then click Compare Documents. In the Original document list, select the original document. In the Revised document list, browse to the other version of the document, and then click OK.
Win merge is a free and open source file comparison tool designed for Windows. It helps you compare both files and folders, that generate differences in a visual text format which is easy to manage and understand.

#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