Modify Text PDF on Ubuntu For Free

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Up to 100 MB for PDF and up to 25 MB for DOC, DOCX, RTF, PPT, PPTX, JPEG, PNG, JFIF, XLS, XLSX or TXT
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Last updated on Sep 20, 2025

Discover the simplicity of processing PDFs online

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Upload your document in seconds
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Fill out, edit, or eSign your PDF hassle-free
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Download, export, or share your edited file instantly
Top-rated PDF software recognized for its ease of use, powerful features, and impeccable support
Users Most Likely To Recommend - Summer 2025
Grid Leader in Small-Business - Summer 2025
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Regional Leader - Summer 2025
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Best Meets Requirements- Summer 2025

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

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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.
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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.
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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.
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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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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.
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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:
So far I absolutely love it. I figured out that I can have my clients sign things electronically through this and I swear that alone makes it worth its weight in gold!
Kimberly B
2016-06-08
I have an autistic son and this PDFfiller is so amazing. There is so much paperwork between social security, IHSS, ABA therapy services, and school this gives me a few extra moments to relax
Brandi
2017-02-27
What do you like best?
The interface of PDFfiller is simple and intuitive. I think that most people can sign up and start using PDFfiller without having to spend much time figuring things out. Once we load a PDF into the system, there are straightforward menu items and labels that help to fill out virtually any form from start to finish. I can save to PDF format with my filled-in information or print right from the PDFfiller website.
What do you dislike?
Anytime I post my information online, I get apprehensive about how my data is being used. Though I'm sure PDFfiller probably takes measures to keep our uploaded and saved documents secure, I just never know with all the malware and server attacks that often occur, in general.
Recommendations to others considering the product:
Some people probably don't want to hassle with putting their documents through a digitized system, but I think once you upload one form to PDFfiller, you'll see how intuitive the entire process and may possibly not print out documents to fill them out anymore.
What problems are you solving with the product? What benefits have you realized?
My handwriting is basically terrible and I often get strains when writing since I typically haven't written by hand much over the past several years. PDFfiller lets me fill out PDF documents more effortlessly and lets me align text and other objects with great precision.
Thomas Ayukawa
2019-12-10
This was so convenient This was so convenient. It was quick and easy to register and begin filling out forms. This helped me out in a crunch to get my 1099 forms completed.
hamiltondara
2019-02-22
Easy PDF completion app Overall from what I've used, this has been a really great way to complete and sign documents. I liked that you can basically fill out forms but digitally. Everything is digital these days and instead of having to download and do a bunch of cumbersome steps to complete a document, you can do it straight from the app. It's much easier and cleaner. I wish you could edit things and make changes. If you need something changed you'd have to contact the other party and have it changed then resent. But even so it's not that big a deal and it's still a great software.
Parker Y.
2020-03-16
PDFfiller Review Overall, the experience is very good. I plan on using it for a very long time. It's very easy to navigate. PDF Filler makes it easy for small business owners as myself to have the professional look when conducting business. It's a lot of features that I don't need. This sometimes causes confusion and extra time navigating around the site.
Christopher T.
2019-01-22
What do you like best? Ability to quickly and easily edit PDF's What do you dislike? Sometimes it's difficult to undo changes made. What problems are you solving with the product? What benefits have you realized? I work in real estate and I often need to fill in PDF's with information for my clients. Being able to do in a web based platform makes it easy to do on any computer.
Derek Abbott-Molina, MBA, MPM
2020-08-30
I absolutely LOVE this!!!!! I absolutely LOVE this stuff!!!! everything about it!!! i just wish it were free or cheaper but i'll be honest....its worth every penny
Jessica Stidham
2020-07-15
GREAT. One month free trial with possibility to cancel and actually getting a refund.Customer service available 24/7 (even on a saturday night within 30 minutes!)Can absolutely recommend.Samuel Reider
Sa Re
2020-05-02

How to Modify Text PDF on Ubuntu

Learn how to solve your PDF-related issues hassle-free.

01
Open the browser you prefer to use most and go to pdfFiller.com to create an account.
02
After a simple registration process, you can upload a file and use the Modify Text PDF on Ubuntu feature.
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You can also upload a file from pdfFiller's library or from a cloud storage service.
04
In the opened document, use the top toolbar’s tools to insert, replace, or highlight/blackout text and place new shapes.
05
Move and delete pages or change their orientation.
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Insert interactive fields with different validation types.
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Recheck the sample. Make sure you’ve made all the wanted changes.
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Click Done to close the editor and apply the changes.
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To create one file from two samples, go to the Documents folder and select More > Merge.
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Export the file in several ways. Your options can be found at the top-right of your screen.

Modify Text PDF on Ubuntu

With the Modify Text PDF feature on Ubuntu, you gain the power to seamlessly edit your PDF documents. Whether you need to correct errors, update information, or tailor content to meet your needs, this tool provides a straightforward solution.

Key Features

Edit text directly within PDF files
Adjust font size and style for better readability
Add or remove images with ease
Save changes in a compatible format
User-friendly interface designed for efficiency

Use Cases and Benefits

Perfect for students updating references in assignments
Ideal for professionals revising reports or contracts
Useful for marketers customizing promotional materials
Helps educators modify lesson plans or worksheets
Facilitates quick updates for project proposals

This feature addresses your need for flexibility when working with PDF documents. With the ability to modify text quickly, you can avoid the hassle of starting from scratch or converting files. Instead, you can make precise adjustments that save you time and increase efficiency.

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
Enter the text you want to replace and your replacement text. 3. Click “Replace Now!” button to replace all text in PDF file. Wait a few seconds for the task to finish.
Choose Tools > Edit PDF > Edit. You can edit text only if the font used for that text is installed on your system. If the font isn't installed on your system, but is embedded in the PDF, you can change only the color or font size. If the font is not installed or embedded, you can't edit any of the text.
Drag and drop your PDF document into the PDF Editor. Add text, images, shapes or freehand annotations as you wish. You can also edit the size, font, and color of the added content. Click 'Apply' and save the changes and download your edited PDF.
Open your PDF document. Switch to Edit Mode. Wait for the Edit toolbar to appear. Select the text editor icon. Click on the document where you want to insert or delete existing text and wait for cursor appear. Type desired text, or delete existing text by pressing the backspace button on your keyboard.

Video Review on How to Modify Text PDF on Ubuntu

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Users Most Likely To Recommend - Summer 2025
Grid Leader in Small-Business - Summer 2025
High Performer - Summer 2025
Regional Leader - Summer 2025
Easiest To Do Business With - Summer 2025
Best Meets Requirements- Summer 2025