Last updated on
Sep 20, 2025
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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.
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.
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.
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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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 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.
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What our customers say about pdfFiller
See for yourself by reading reviews on the most popular resources:
I couldn't find 2018 W2 forms in the…
I couldn't find 2018 W2 forms in the library. I looked for an hour. I could find 2016 W2s, 2019 W2s, but, not 2018. I found all kinds of IRS forms, but, not 2018 W2s. Finally I gave up after 2 days and emailed support. They responded immediately with form. It was awesome. I was shocked. They get A+ in my book !!!!! Jeff R.
2019-01-25
Forgot something on you PDF? this software got your back
It really happens to everyone, somethings you just miss something on a document that is already a pdf, with this tool you can fix it right away.
Let's be real, it happens to all of us, we made or receive a pdf, and we forget to sign it or add a line, even just correct a typo. PDF filler will just let you convert this to a word doc so you can fix all you need.
Nothing, easy to use, easy to convert again to pdf and help a lot if you just lost the original file.
2019-11-29
Great, this time so far. I used the program a little over a week ago but my documents were messed up because I was not told I had to pay first in order to save or print the document. I had to create it all again. It was the same one as this now, 821 ssa form. It took me hours to get as far as I had.
2023-03-07
It works - one problem I found though is that after I scanned a document with the Adobe scanner, the document was locked with password not allowing it to be opened by the person I sent the document to. I didn't seek that extra security so I basically don't know where it NOcame from.
2022-06-08
I started with pdfFiller almost a week…
I started with pdfFiller almost a week ago, and tried to get support on and off. The Live Chat didn't work, so I was emailing, but the emailing didn't really work as I would wait for a response, and when I got a response, I was working on something else. But the Live Chat did work today. The first person was trying to help, but I didn't know how to do a screenshot and he got tired of waiting for me to do it and ended the chat. Then, I got KARA, who was fantastic. She did a Zoom meeting and showed me how to do everything I want. I am so relieved that I understand how to fix my problems, and I was just about to give up until Kara got on the Live Chat. She was patient and informative. She is a rock star!
2021-11-30
Pretty Nice
Really well made app, easy to use, fantastic for editing really any PDF you have. Very responsive and nice customer service, and I overall had a great experience for the time I used it.
2021-07-22
This is a true time saver!!!
This is a true time saver!!!! Not real user friendly BUT if you stay with it you'll reach your goal of a completed form. After that, print off and take to or send to the Court. If you need to modify later you simply go back to your account and documents saved and make the changes.
2021-05-11
Easy to use with multi-functions
Very easy to use, several functions and formatting system. I have tried many PDF editors - this is the best of them all! Keep it up!
2020-10-21
What do you like best?
I have not used any other feature but editing the documents. it is so far to my satisfactory
What do you dislike?
when we need to have more than 2 files on the screen for editing by switching one from another to compare , i ound that i not able to do so, we have to close one and then open another another one, this will course losing the data and takes time ( that could be the possibility that features are there but i don't know how to use it at same time,
Recommendations to others considering the product:
based on my experience by using it, it is good for editing
What problems are you solving with the product? What benefits have you realized?
i usually use pdFiller to edit the shipping documents that are not in compliance with requirements that officials need for format of the documents , contents of the documents ,such as some information are missing as the documents
2020-08-25
Introducing Compare Document Feature
Our new Compare Document feature is designed to make your life easier and more efficient when working with documents. With this feature, you can effortlessly compare multiple documents side by side, saving you valuable time and effort.
Key Features:
Side-by-side Document Comparison: Easily compare two or more documents simultaneously to identify differences and commonalities.
Highlighting and Tracking: Track changes and additions made to the documents, with color-coded highlights for easy identification.
Interactive Interface: Seamlessly navigate through compared documents using a user-friendly interface, making it simple to review and analyze content.
Sorting and Filtering: Sort and filter compared documents based on specific criteria, such as date, author, or relevance, to focus on relevant information.
Version Control: Keep track of different versions of a document, ensuring you make informed decisions based on the most up-to-date information.
Potential Use Cases and Benefits:
Legal Professionals: Quickly identify changes made to legal agreements, contracts, or court documents, ensuring accuracy and avoiding potential legal pitfalls.
Content Writers and Editors: Efficiently compare drafts of articles, blog posts, or books to ensure consistency and coherence throughout the writing process.
Researchers and Academics: Compare research papers or academic articles to spot discrepancies or similarities, enhancing the quality of research and streamlining collaboration.
Project Managers: Keep track of document updates and revisions within a team, ensuring everyone is working from the same version and avoiding confusion.
Business Professionals: Compare sales reports, financial statements, or business plans to gain insights and make data-driven decisions effectively.
With our Compare Document feature, you can save time, ensure accuracy, and enhance collaboration. Say goodbye to tedious manual comparison and let our tool do the work for you. Unlock the full potential of your documents and boost productivity with ease.
How to Use the Compare Document Feature in pdfFiller
The Compare Document feature in pdfFiller allows you to easily compare two versions of a document and identify any differences between them. Follow these steps to use this feature:
01
Open pdfFiller and log in to your account.
02
Upload the two versions of the document you want to compare. You can either upload them from your computer or import them from cloud storage services like Google Drive or Dropbox.
03
Once both documents are uploaded, click on the 'Compare Document' option in the toolbar.
04
Select the two documents you want to compare from the drop-down menus. You can choose to compare documents from your pdfFiller account, your computer, or cloud storage.
05
Click on the 'Compare' button to start the comparison process.
06
pdfFiller will analyze the documents and highlight any differences between them. You can easily navigate through the compared documents using the navigation buttons provided.
07
To view the details of each difference, click on the highlighted area. pdfFiller will display a side-by-side comparison of the selected area in both documents.
08
If you want to accept or reject a difference, click on the corresponding button in the toolbar. You can also add comments or annotations to the compared documents if needed.
09
Once you have reviewed all the differences and made any necessary changes, you can save the compared document as a new file or overwrite one of the original documents.
10
Congratulations! You have successfully used the Compare Document feature in pdfFiller.
Using the Compare Document feature in pdfFiller makes it easy to identify and manage differences between two versions of a document. Whether you're working on legal contracts, business proposals, or any other type of document, this feature will save you time and effort in reviewing and comparing changes. Start using the Compare Document feature today and experience the convenience it offers!
Did you know?
Microsoft Word allows you to compare every difference in two nearly-identical documents. The Compare tool is built in to the Compare tool in Microsoft Word. You can only add a tag to the revised document, but can switch between them with the double-arrow icon.
Comparing documents is a process that identifies changes between two documents and contains the changes as revisions. This process of comparison is a usual task in the legal and financial industries. Instead of manually searching for differences between documents or between different versions of them, you can use Appose. Words for comparing documents.
Document comparison, also known as redlining or black lining, is a computer process by which changes are identified between two versions of the same document. Document comparison is a common task in the legal and financial industries. Common documents formats for comparison include word processing documents e.g. Microsoft Word, spreadsheets, presentations e.g. PowerPoint, and Portable Document Format PDF documents.
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