Underline 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:
- Document load speeds need to be increased
- Cannot send multiple documents for signature in one shot
- Add audio feature to attach custom audio messages to documents
- Integration with Google docs for collaboration
- The listing feature with check boxes is old-fashioned. Use icons based on file type.
2015-12-19
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
Your software is brilliant.If you could lower your price for home users, it is bound to make a big difference for your company. Always remember, "many a drop make an ocean"
2020-01-29
used a handful of other pdf programs, and while there have been a decent one here or there, most have been quite irresponsible, irresponsive, and irritable! pdfFiller is by far the most user-friendly, quick, and manageable one there is, notes this observer! am definitely glad i went for the platinum membership - has not only calmed my disdain towards pdfs, but i am actually having fun with them now! ^_^
salamat poh, y arrigato, mi llamato ~
2022-11-14
pdfFiller.com gave me faith in online…
pdfFiller.com gave me faith in online companies. I have no idea what I was trying to accomplish, but had signed up for a 30 day trial. I never used the program, just must have been sleep working. Anyhow, I was so surprised when I got the notification that I had just bought a year subscription. I was beating myself up and trying to figure out how I could be so unaware. I first tried to call. The phone was endlessly busy, I thought wow I just lost $122 (I paid in Canadian funds). Anyhow, I thought I may as well try sending an email. I could not believe it!!!! The response was almost immediate. Max, took care of everything. He issued a refund, and let me know he had cancelled any future subscription. I was in absolute shock. If I had a need for pdfFiller, in that moment, I would have signed up for years. THANK YOU for being accommodating and obviously trustworthy. Again, you have given me a bit of hope for humanity.
2022-02-01
What do you like best?
It's ability to upload pretty much any type of document
What do you dislike?
I cannot really say anything I dislike about the product
What problems are you solving with the product? What benefits have you realized?
The biggest problem we have is that we receive uneditable documents that we are able to edit easily with PDFFiller. It's super beneficial because it saves us so much time.
2021-10-25
IF YOU HAVE DOCUMENTS TO BE FILLED OUT…
IF YOU HAVE DOCUMENTS TO BE FILLED OUT OR SIGNED, THIS IS DEFINETLY THE PROGRAM TO USE. ITS EASY TO GET AROUND. THE PROGRAM DOES EXACTLY WHAT IT SAYS.
2021-08-23
A very easy to use program
A very easy to use program, though you are forced to sign up for free trial if you want to print any documents.It did what I required, so cant complain. Just would prefer it to notify of unable to print unless joined up for 30 day trial before I spent 4 hours working on translation document.
2021-04-23
Just retired and pdfFiller saves the day.
Just retired and found several entities I need to work with to get all my personal business done still require faxing and filling out lots of documents. pdfFiller has help me out immensely with the modification of scanned documents and the ability to fax them...
2021-03-25
Underline PDF on Linux - Enhance Your Document Experience
Underline PDF on Linux offers an efficient way to mark important points in your documents. Whether you are a student, a professional, or an organization, this tool makes it easy to highlight your key information.
Key Features
Easily underline text in PDF files
Compatible with various Linux distributions
Simple, intuitive interface
Save and share your marked documents easily
Supports multiple file formats for flexibility
Potential Use Cases and Benefits
Students can underline vital concepts for better retention
Professionals can emphasize critical data during presentations
Researchers can highlight key sections in articles for quick reference
Teams can share underlined documents to improve collaboration
With Underline PDF on Linux, you can tackle the challenge of sifting through information. By highlighting important text, you transform how you interact with PDFs. This tool helps you save time and boosts your productivity, making document review less daunting and more effective.
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
Is there a free PDF editor for Linux?
PDFsam Basic is a PDF editor for Windows, Mac, and Linux. It lets you merge, split, extract pages, rotate, and merge your PDF files easily. It has been free and open-source since 2006, offering reliable PDF editing capabilities.
How do I highlight text in Linux document viewer?
In the default document viewer that comes with Ubuntu, you can use ctrl + H to highlight the text.
How do I highlight text in a PDF in Linux?
Evince (or Document Viewer), the default pdf viewer as of Ubuntu 18.04 also supports highlighting and annotations. To show the annotations menu bar, you must click on the red circle (see below). The annotation options appear and you can annotate or highlight as seen in the blue circle in the image below.
How do you highlight a PDF in Linux Mint?
Re: PDF Highlight specific text choose > Comments > Highlight Text will highlight only the current selected text.
What is the best PDF annotation for Ubuntu?
Okular - The Best Free PDF Editor for Ubuntu One of the best things about choosing Okular over others is the number of annotation features that you will get. Under the "Reviews" section of the program, you get various annotation options including popup notes, highlighter, stamps, and even inline notes.
How do I highlight a PDF in Linux?
To annotate a PDF file on Linux using Evince, you can follow these simple steps: Find the PDF file you want to annotate and open it in Evince. Once the PDF is loaded in Evince, click the Thumbnails dropdown arrow on the upper left corner. A menu of options will appear, and you will need to choose the Annotations option.
#1 usability according to G2
Try the PDF solution that respects your time.