Compare PDF 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:
it does important essential legal functions in ways that work but are somewhat visually disorienting and that are provided through a user-insensitive, extortive pricing model. The fact that PayPal has removed you from their approved subscription list may be entirely technical but it does not inspire confidence.
John K
2016-06-19
What do you like best?
I can send as many documents out for signature as I want. No restrictions. I used to use Adobe, but they had a cap on the amount of documents you can send for signature. When I tried to get that upgraded, they had outlandish prices for this same service. With PDFfiller, I can send all the documents I want and I'm also able to save all of them securely.
What do you dislike?
I wish the PDF conversions didn't come out like pictures. When I convert a PDF to Word, it always comes into Word as a picture instead of being able to edit the document. As a recruiter, I receive a lot of resumes that need some work before we can submit them to clients. I still have to use Adobe for this function, so now I'm paying for two PDF programs. I can't just stay with Adobe though because of the above mentioned issues.
Recommendations to others considering the product:
If you need eSignatures, this is the program to go with.
What problems are you solving with the product? What benefits have you realized?
Remote onboarding is a breeze with PDFfiller. I am able to send HR documents to people across the country and still get them to work on time. I'm in VA and have to get employees to work in all states across the country, as well as oversees. We have to get documents to them for signature and faxing doesn't always work. With PDFfiller, we can send anyone any document and get it back fully signed by them. It's truly wonderful.
Angela Camacho
2019-01-30
Excellent product and excellent customer service team. Excellent product of easy manipulation with expected result. They have an excellent customer service team. I recommend!!
novasenha3
2019-05-08
Everything works Everything works, you do not require me to pay for continually using the service and my signatures and information are saved in the site. 100% would recommend to others.
darianlb
2024-09-12
So far it has been fairly simple. Am glad to find the form I required and has been pretty simple to fill it out. Will be back to finish as soon as I compile the other information required for the form I am filling out.
wkh
2024-09-11
During the Pandemic it seemed like everything I did was online, and pdfFiller was essential in filling out many documents for submission. pdfFiller has made my life a lot easier! Thank You!!
Anonymous Customer
2023-01-31
Only ever used Adobe in the past. Found this affordable option. It is fantastic. User friendly and effective app. I applied for a rental with a heap of forms to fill out and now our family are living in it. I accidentally signed the 1year subscription. Advised that I only wanted to use it during the trial period for a purpose and happy to pay for one month. They communication was quick and on point. They summarised and actioned exactly what I requested. Only charged me $30 for the month and cancelled my future subscription. I would happily use this again. Thank you.
Di T
2022-03-28
I highly recommend if you just need to… I highly recommend if you just need to do one project I won't comment on the long term part but I signed up for free trial made edits on a 24 page PDF I received via email and to return via email filled out. I was ripped off by two other pdf companies before I tried this one. both times I did 24 pages of work only for it to paywall it and never recover it even after taking my money.THANK YOU PDFFILLER
John F.
2021-06-10
PDFFiller makes it easy for me to sign… PDFFiller makes it easy for me to sign documents, as well as send them to others for their signatures. We use it regularly and they make creating legally recognized documents simple.
Kevin Harrison
2024-12-12

Compare PDF Feature

The Compare PDF feature helps you easily identify differences between two PDF documents. This tool streamlines your workflow and enhances your productivity by allowing you to quickly spot changes without manual effort.

Key Features

Side-by-side comparison of two PDF files
Highlighting of added, removed, or modified text
User-friendly interface for easy navigation
Export comparison results to various formats
Ability to compare documents of different versions

Use Cases and Benefits

Reviewing contract revisions with clarity
Identifying changes in project documents efficiently
Ensuring compliance by comparing regulatory documents
Simplifying collaboration by tracking edits between team members
Saving time in document review processes

With the Compare PDF feature, you can tackle issues related to document discrepancies effectively. By providing a visual comparison, you eliminate confusion and reduce the risk of oversight. This tool empowers you to work smarter and keep your projects on track.

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!

How to Use the Compare PDF Feature in pdfFiller

The Compare PDF feature in pdfFiller allows you to easily compare two PDF documents and identify any differences between them. Follow these steps to use this feature:

01
Log in to your pdfFiller account. If you don't have an account, you can sign up for free.
02
Once you're logged in, click on the 'Compare PDF' option in the main menu.
03
Upload the two PDF documents you want to compare. You can either drag and drop the files or click on the 'Upload' button to select them from your computer.
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After the documents are uploaded, pdfFiller will automatically compare them and highlight any differences. You can view the differences side by side or in a single document.
05
To navigate through the differences, you can use the arrow buttons or the navigation panel on the left side of the screen.
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If you want to make changes to the compared documents, you can use the editing tools provided by pdfFiller. You can add text, images, signatures, and more.
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Once you're done reviewing and editing the compared documents, you can save them or download them to your computer.
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If you need to compare more than two PDF documents, you can repeat the process for each pair of documents.

Using the Compare PDF feature in pdfFiller is a convenient way to quickly identify differences between PDF documents. It saves you time and effort by automating the comparison process and providing you with the necessary tools to make any necessary changes. Start using the Compare PDF feature today and streamline your document comparison workflow!

Did you know?

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Copy leaks plagiarism checker allows you to compare PDF files against one another and get an accurate report of how original the text is. You can compare 2 PDF documents side by side, and similar text is highlighted in both the documents. The tool is able to identify three kinds of similarity, find match types of similar, and text meaning.

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 document you wish to edit. In the toolbar at the top of the screen, click the “Review” tab. ... Click the “Track Changes” button to enable Track Changes. ... Open the drop-down menu next to the “Track Changes” button. ... Select “All Markup”. ... Click the “Show Markup” drop-down menu.

#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