Add Underline To PDF on Linux For Free
Drop document here to upload
Up to 100 MB for PDF and up to 25 MB for DOC, DOCX, RTF, PPT, PPTX, JPEG, PNG, JFIF, XLS, XLSX or TXT
Note: Integration described on this webpage may temporarily not be available.
0
Forms filled
0
Forms signed
0
Forms sent
Discover the simplicity of processing PDFs online
Upload your document in seconds
Fill out, edit, or eSign your PDF hassle-free
Download, export, or share your edited file instantly
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:
PDFfiler allowed me to create a far superior MO Real Estate Disclosure form. It allowed me to edit to my heart's content, rather than scratching handwritten stuff out and ending up with such a mess that i had to hand write another copy. The end result was far more professional looking than a handwritten form. About a 5 minute learning curve and the software functioned perfectly. After editing, I was able to save the pdf to my computer, send it by email, print it, and some other stuff that I didn't use. PDFfiler can also get remote signatures.
2015-06-26
Works great with laptop, but Was time consuming and difficult to work on IPad. Had to switch to my laptop in order to speed up the process and complet the job.
2016-07-24
I use it for filling out work related forms. The forms look much better when filled out online rather than writing in all of the data. I'm able to save a copy online or on my computer, rather than filing a hard copy. It's very convenient and the forms look good too.
2017-11-16
Usefull
Very useful app you can do stuff on phone and easily move on to desktop to continue what you're doing nothing special but it definetely isn't bad
2023-06-15
pdfFiller for document sign
I like the robust feature that pdfFiller provides, fairly simple to use
Limited functionality, rarely see updates to match other features Adobe has
2022-06-08
Payment issue dealt with swiftly
After both my cards being declined to register my subscription, I went onto the online support chat. Kara was super helpful and quick to deal with my issue - very professional and friendly. Kara was very generous in giving me three free days and advised within that time to try my payment again after 24 hours. Thank you Kara for taking the stress away and resolving my issue fast. Morven
2021-09-16
Best customer service ever
Best customer service ever! I accidentally signed for a year and it cost me an amount of money I can't afford (it doesn't seem much, but when your local currency is way behind USD, it greatly hurts your wallet). After reaching Rachel on pdfFiller's customer service team, they not only refunded me but also waived a month of free access. I couldn't be happier of using it! Recommending it to all my friends, from now on!
2021-05-13
Support team is on point.
I was charged for a one year subscription even though I had cancelled before the 30 day free trial was over. The support team immediately resolved my issue. Within a couple of minutes. Special thanks to John.
2021-02-27
Best Service :)
Thank you so much for such good hospitality. Most companies would not offer a refund so easily for an automatic subscription and so fast as well. This shows such good ethics as a company. I really appreciate that! As well if I ever did have the need to use this service, makes me happy to come back and also recommend it to others!
2020-11-14
Add Underline To PDF on Linux
Enhance your PDF documents with the ability to underline text directly on your Linux device. This feature allows you to emphasize key points, making your PDFs more informative and engaging.
Key Features
Easy and intuitive interface for quick underlining
Support for various PDF formats
Compatibility with leading Linux distributions
Option to save changes or export new files
Secure handling of your documents
Potential Use Cases and Benefits
Highlight important information in academic papers
Emphasize critical points in business reports
Annotate legal documents for better clarity
Assist students in studying by marking essential concepts
Improve collaboration by clearly marking shared PDFs
By allowing you to add underlines, this feature solves the problem of maintaining focus on crucial content within your PDFs. You no longer need to rely on complicated tools or guesswork. Instead, you can directly mark up your documents, ensuring that you and your readers grasp the essential insights quickly and clearly.
#1 usability according to G2
Try the PDF solution that respects your time.