It only takes a few clicks to Underline PDF in Android For Free

Drop document here to upload
Select from device
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

Card illustration
Upload your document in seconds
Card illustration
Fill out, edit, or eSign your PDF hassle-free
Card illustration
Download, export, or share your edited file instantly
Top-rated PDF software recognized for its ease of use, powerful features, and impeccable support
Trust Seal
Trust Seal
Trust Seal
Trust Seal
Trust Seal
Trust Seal

Every PDF tool you need to get documents
done paper-free

Card illustration

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.
Card illustration

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.
Card illustration

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.
Card illustration

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.
Card illustration

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.
Card illustration

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 just started, I also using Dochub for electronic signing. Your features of creating folders and unlimited storage is great. Sending documents to mobile phone is a great feature. I haven't explore the rest. All the best to your team. Good Luck.
gunalan a
2016-09-11
Outstanding! I am getting a lot of good use out this program and it is saving me a lot of time. Very useful. I like how i can fill in and sign documents
Satisfied
2017-04-04
What do you like best?
I really like the fact that you can create your own templates and save them for future use. I also like being able to send a text to another party and have them sign electronically.
What do you dislike?
The only real complaint I have is that I keep getting signed out.
Recommendations to others considering the product:
I highly recommend PDF Filler to anyone that needs the ability to edit, create, and manage PDFs. It is easy to use and has a great price point.
What problems are you solving with the product? What benefits have you realized?
PDF Filler makes it incredibly easy to redact documents.
Administrator in Law Practice
2019-01-28
What do you like best?
The eraser feature and the signature features are what I like best
What do you dislike?
That for some semi-governmental organizations they will only accept a document if Adobe PDF is used and PDF Filler isn't acceptable
Recommendations to others considering the product:
This software defintely takes care of all your needs.
What problems are you solving with the product? What benefits have you realized?
I sign and fill out most of my contracts and agreements with it
Harold Barr
2019-08-15
It is amazing how simple this app is to… It is amazing how simple this app is to use. It is a real joy. I wish I had stumbled upon it years ago!
Anthony Testa
2019-08-06
Excellent customer service This company is very customer orientated. The company support is excellent. No waiting about for answers to any queries, they reply straight away. They will do their upmost to help you. Very professional.
Karen Connell
2024-10-06
I find that using your program is easy to navigate and looks professional when completed. I find that using your program is rather easy to navigate. The only issue that I have had is when I try to print a document, there have been quite a few times that it will download to 63% and then gets stuck there. I have to close the document and try again....sometimes several times until I can print it. Besides that, it has been great!
Elaine Bostic
2023-01-22
Very good tool Very good tool - I used the free trial and I'm about to find out how easy (or not) it is to escape before getting stuck in the subscription system! Update! It was very easy to cancel the subscription - confirming my 5 Star rating!
Mark
2021-11-05
I used this product to edit and fill… I used this product to edit and fill out an application and found the software to be very easy to use and very effective! I unfortunately forgot to cancel my 30day free trial and was unexpectedly hit with the charge the week before payday when I really couldn’t afford it. I explained my situation to the customer support team via chat and they happily refunded me my payment! Could not be happier with the service they provided and the understanding of my situation. Would definitely recommend!
Steven Proudlock
2025-05-16

Underline PDF in Android with no issues

When it comes to dealing with files in PDF, different operating systems have different capabilities. Some of them only allow a partial editing, and some have no software at all. Avoid spending hours looking for a platform that’s compatible with your device and allows you to Underline PDF in Android.

Simplify your work and use pdfFiller, a powerful solution for efficient document management. Just set up your network connection and navigate to pdffiller.com to reach our professional online editor.

What you get when you Underline PDF in Android with pdfFiller:

01
Simplicity. Start editing PDFs like a pro without tutorials. The interface is user friendly and straightforward.
02
Flexibility. Stop worrying about compatibility issues. The tool works well on all major platforms.
03
Security. Feel safe with bank-level security and compliance. The data uploaded and added is secured with advanced encryption methods.
04
Integrity. Combine the PDF editor with a wide variety of available clouds, CRM systems, or databases. The vast number of cloud storages available makes moving documents fast.
05
Validity. Utilize legally-binding eSignatures. The eSignatures created in pdfFiller can be used in court.

Boost document management-related tasks with the right tools and features with our app. Improve your workflows today!

Underline PDF in Android: Your Essential Tool for Document Management

Underline PDF in Android offers a seamless way to interact with your PDF documents. Whether you are a student, a professional, or anyone who works with PDFs, this feature enhances your experience by allowing you to highlight important text effortlessly.

Key Features of Underline PDF in Android

Highlight important sections of your PDFs with precision
Preserve your annotations for future reference
Easily share your marked documents with colleagues or friends
Organize your PDFs while drawing attention to critical information
Access your underlined content anytime, anywhere on your Android device

Use Cases and Benefits

Perfect for students identifying key concepts in their study materials
Ideal for professionals reviewing contracts or reports
Great for researchers collating references and quotes from multiple sources
Helpful for anyone preparing presentations or proposals and needing to highlight main points
Smart tool for effective collaboration in team settings, focusing discussions on underlined notes

Underline PDF in Android solves your problem of managing and navigating lengthy documents. By allowing you to mark key information, it makes your reading easier and more effective. You will save time and improve comprehension, as you can focus on what truly matters in your PDFs. This feature transforms the way you interact with your documents, making your workflow smoother and more productive.

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!

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
Part 1: How to Highlight PDF on iPhone, iPad and Android You can download the PDF highlighter App on your devices, open the PDF file with the APP and then find the PDF annotation tools to highlight and annotate the PDF file on your mobile devices.
Step 2: Click on the 'Open File' button to open PDF files to the PDF annotator. Step 3: Go to the 'Comment' tab and select markup tools to annotate your PDF file. There are several annotate tools, such as highlight, strikethrough, shapes, pencil, sticky notes, stamps and more.
6:48 13:16 Top 5 Best PDF Annotation Apps on Android for 2022 - YouTube YouTube Start of suggested clip End of suggested clip File so you have to just select this blue color icon over here it's like a pen icon just select itMoreFile so you have to just select this blue color icon over here it's like a pen icon just select it and you will have all your tools available over here.
To create a highlight, tap the center of your screen to bring up the Action Bar. Tap the Annotation Toolbar, then the Highlighter icon. Drag the marker with your finger to the end of a sentence or paragraph to highlight the text.
To accent text or images, tap and hold the Highlight icon. Select either the Highlight, Underline, or Strikethrough option, then at the bottom of the screen, expand the Styles menu to further customize your selection.
Choose Tools > Comment, and select the Highlight Text tool , the Strikethrough Text tool , or the Underline Text tool .

Video instructions on how to Underline PDF on Android

#1 usability according to G2

Try the PDF solution that respects your time.
Trust Seal
Trust Seal
Trust Seal
Trust Seal
Trust Seal
Trust Seal