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How To Write On A PDF

PDFs are non-editable files that are widely used, especially in offices. But “non-editable” doesn't mean that you can't write on such documents. How do you do it? Well, it's really easy if you follow this guide about writing on PDFs. In the next paragraphs, you will learn all about how to write on a PDF 100% online.

There are many hypothetical situations where you might need to write on a PDF. For instance, suppose you're working at a multinational company, and your colleague sends you a layout in PDF format, and you need to resend it after making the required changes to your client. In such a situation, you would need a way to insert words into a PDF file, or even make other changes using a PDF editor.

With this in mind, in this article, we'll provide an answer to one of the most searched questions about this famous file format, which is: how to write on PDFs. In addition, we'll also provide you with various alternative methods to do the same. So, without further ado, let's get started!

How To Write On A PDF Step-By-Step

If you want to write (add text) to PDFs, here at FormatPDF.com our tool called "Write on PDF" is the best solution for you. It's a fully online tool that works on all platforms, be it Windows Mac, Android, Linux, or iOS. With this tool, you can quickly insert text into PDFs (including words and signatures) that have already been created.

Here are the steps you need to follow to add words to your PDF:

  1. Go to https://www.formatpdf.com/en/write-on-pdf/
  2. Either tap on the "Select PDF file" button or drag the required document to the "Or drag and drop the PDF here" box.
  3. Once you upload your file, a tool that includes a text editor with other functions will open up on the screen. To insert words, you need to first click on the "T" that appears on the top left side of the screen. It'll give you access to the writing function.
  4. You'll find a series of settings for color, size, font, bold, italics, underlining and line spacing for the texts you want to add to your document.
  5. When you’re ready, click on the "Download" button!

Of course, writing on your file isn't the only thing you can do. You can split the PDF into more files, compress it to make it weigh less, or even convert the PDF to Word. In brief, with our comprehensive suite of online tools, you can make all the changes you could need to your documents!

How To Write On A PDF

What You Need To Know About Writing On A PDF

The next important thing for you to learn is a few aspects of how to write on PDFs. These are as follows:

  • Whenever you add words to your PDFs, make sure that you're using the appropriate color for the reader. That's important because once you're done, you don't want to alter the document again, which will take a lot of your time and energy.
  • Also, it's essential to choose the color of your newly added text in accordance with the text’s already existing color.
  • The position of the text box where you're going to add words is another vital consideration. We're sure you don't want a PDF where your added text overlaps any existing elements!
  • Bear in mind that any changes you make will be present in the document you download. For example, if the font of the original file is different from that of the words you add, then the final document will include both fonts.
  • The resulting PDF you get will include everything you've added, from fonts to colors, elements to text, etc., so be sure to double check it’s all correct before you download it.

Which Alternative Programs Allow You To Write On A PDF

While online tools like this one are the best option if you want to insert text on a PDF, sometimes you might also want to use an alternative. In fact, there are many third-party programs. As such, in this section, we’ll learn about different ways to write on PDFs on different operating systems!

Write On A PDF On A PC

PDFs are one of the best formats to view documents on any type of device. However, the procedure for adding words to an already-created file isn't something everyone knows. In fact, most people think it's impossible to add text to these files on a PC (Windows, Mac, or Linux) - but luckily it's not.

Windows 10 And Prior Versions Of Windows

Have you ever tried to add text on PDFs on a computer with the Windows operating system? If yes, you probably know that it isn't possible to add text to PDFs with a simple file reader. You need to have software like Adobe Acrobat Reader that allows you to do so.


Writing on PDFs on Mac couldn't be any easier. In fact, it's the only operating system that comes with a pre-built program for getting this task done. Mac has a program called Preview, which helps you open PDFs and has options to let you easily add text to them.


Almost all Linux devices have a PDF viewer, but not every device comes with the ability to insert text into such files. No worries, because there are plenty of alternatives available for Linux that you can use for adding text to PDFs. For example, you can install external apps like LibreOffice Draw, Qoppa PDF Studio, etc.

Write On PDFs On A Smartphone Or Tablet

Smartphones are so popular these days that it comes as no surprise that most people love working with PDFs while on the go. Here's how you can write on PDFs on mobile devices.


If you're an Android user, you've probably noticed that you can open PDFs on your Android phone but can't add text to an already-created file. As such, if you want to add text to a PDF, you could use a program such as Acrobat Reader. It has a feature that allows you to insert text on PDFs.

iPhone (iOS) Or iPad

Of course, there are ways to add text to these files on iPhone (iOS) or iPad other than using online tools. You can download and install the Adobe Acrobat Reader app from the App Store for free and use it to add text to your PDFs.

Husain has been around the internet ever since the dial-up days and loves writing about everything across the technosphere. He loves taking tech apart and see what makes them tick, without necessarily putting it all back together.
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