Accelerate the way you Add Underline to PDF on Website Gratis
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Top-rated PDF software recognized for its ease of use, powerful features, and impeccable support
Every PDF tool you need to get documents done paper-free
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.
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.
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.
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 was needing a temporary custody order for my grandchildren. I found exactly what I needed on PDFfiller and it made for a great experience. I will be using this product as needed in the care and control of my Grandkids life.
2017-08-04
extremely convenient and fairly easy to use, but i need to find time to sit down and learn more features other than just filling out forms and signing them. I think the vvalue of a yearly subscription is very good.
2017-08-09
What do you like best?
I started using PDFfiller as an alternative to Adobe Acrobat, which is not available for Chromebook. I expected it to be something I could use to make small edits to PDFs and also to fill in non-fillable forms. It has proven to be way WAY more than that. I like that the program is incredibly versatile
What do you dislike?
I wish I could save files to by Google Drive into the folders that I want rather than having to move them from the PDFfiller folder.
Recommendations to others considering the product:
Try it first, but it really is that good.
What problems are you solving with the product? What benefits have you realized?
editing PDFs, converting PDfs to Power Point, signing documents directly,
I started using PDFfiller as an alternative to Adobe Acrobat, which is not available for Chromebook. I expected it to be something I could use to make small edits to PDFs and also to fill in non-fillable forms. It has proven to be way WAY more than that. I like that the program is incredibly versatile
What do you dislike?
I wish I could save files to by Google Drive into the folders that I want rather than having to move them from the PDFfiller folder.
Recommendations to others considering the product:
Try it first, but it really is that good.
What problems are you solving with the product? What benefits have you realized?
editing PDFs, converting PDfs to Power Point, signing documents directly,
2019-08-23
What do you like best?
Exceptional product, best I have found. Company also offers exceptional custiomer service. 100% pleased
What do you dislike?
Sometimes doesn't allow you to edit certain text but this happens rarely
Recommendations to others considering the product:
nil
What problems are you solving with the product? What benefits have you realized?
Altering documents. Signing formas.
Exceptional product, best I have found. Company also offers exceptional custiomer service. 100% pleased
What do you dislike?
Sometimes doesn't allow you to edit certain text but this happens rarely
Recommendations to others considering the product:
nil
What problems are you solving with the product? What benefits have you realized?
Altering documents. Signing formas.
2019-08-26
Awesome product!!
Fax and Documents
Its so easy to use! I like the fact that i can easily send faxes of the document that i created! I can now get rid of three other services i paid for and just use PDF FILLER!
I wish their was a line i could call to get tech support because I am sometimes in need of a really quick question. I cant find anyone to help!
2017-11-20
Very helpful in wrestling with PDF…
Very helpful in wrestling with PDF documents. The software allows moving around the type and signing, which is nice.
2021-02-27
cost per document option
I would like it if you could have a price per document option. I very rarely need this app but when I do, it is very nice to have.I can't justify a monthly subscription but would pay $3 to $5/document. to use this app.
2020-12-07
What do you like best?
I use PDFILER constantly. It's a helpful tool for my business.
What do you dislike?
Honestly? I'm very satisfied with it... no complaints!
Recommendations to others considering the product:
It's a great tool for everyone who wants a trustworthy system
What problems are you solving with the product? What benefits have you realized?
Especially to adjust all papers comes from every customer or contractor.
2020-11-18
This is an easy program that I can use…
This is an easy program that I can use anywhere. I it is extremely helpful with a variety of tasks that I need to do.
2020-11-05
Add Underline to PDF on Your Website with Ease
Are you looking to enhance your PDF documents on your website? Our feature allows you to swiftly add underlines to your PDFs, making important information stand out. This capability helps you communicate effectively with your audience, improving the overall user experience.
Key Features
User-friendly interface for quick access
Simple selection of text and addition of underlines
Supports various PDF formats
Seamless integration with your existing website
Instant preview of changes before saving
Potential Use Cases and Benefits
Highlight key points in educational PDFs
Emphasize important sections in business reports
Improve readability for training materials
Create visually engaging marketing documents
Enhance PDF accessibility for all users
By using this feature, you can easily guide your readers' attention to crucial information. The ability to underline text sets your documents apart, ensuring your audience quickly grasps the essence of your content. Solve the issue of flat, unremarkable PDFs—transform them into interactive resources that resonate with your users.
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
Where is highlighter tool in PDF?
Choose Tools > Comment, and select the Highlight Text tool , the Strikethrough Text tool , or the Underline Text tool .
How do I add a checkmark to a PDF online?
Do the following: Select a comment in the Comments list. From the options menu , select Add Checkmark. You can also right-click the comment and select Add Checkmark. A check mark icon appears on the comment.
Video instructions on how to Add Underline to PDF on Website
#1 usability according to G2
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