Mark Stephens Mark has been working with Java and PDF since 1999 and is a big NetBeans fan. He enjoys speaking at conferences. He has an MA in Medieval History and a passion for reading.

What Is A PDF?

1 min read

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Imagine you have just created an awesome Microsoft Word document, filled with images, tables, cool fonts, and all sorts of fancy stuff. You share it with your colleagues, expecting them to shower you with compliments. Instead, they send back screenshots with disappointed comments like, “The images are overlapping, the tables are a mess, and the text is unreadable.” Frustrated, you turn to the internet for answers and quickly realize that PDFs are the way to go. But what is a PDF file, and how do you use it?

What Is a PDF?

PDF stands for “Portable Document Format.” It’s a widely-used file type designed to display documents consistently across different devices. If you have ever downloaded a printable form, manual, or e-book, you have likely encountered a PDF. First introduced by Adobe in 1993 (based on PostScript), the format has evolved, and we are currently using version 2.0. These days, it’s maintained by the PDF Association, of which we are proud members!

Why Should You Convert Word Docs to PDF?

So why should you convert your snazzy Word document into this format? The key is consistency. A PDF looks the same on every device—whether it’s on your laptop or a colleague’s phone. No weird overlaps, no strange fonts, and no formatting issues. What you see is what everyone else sees.

Can You Edit a PDF?

After discovering the magic of PDFs, you might think, “Great, I’ll just edit everything in this format from now on!” But then you open such a file in a text editor and… BOOM! A bunch of gibberish.

PDF in Text Editor

That’s because this format isn’t designed to be edited in the traditional sense. You can’t just open and edit a PDF file. That’s why when you open one in a text editor, it looks like a jumbled mess of symbols and characters.

To view them, most operating systems (Windows, macOS, Linux) support free readers like Adobe Acrobat, Preview, Nitro, and Foxit. Even web browsers like Chrome, Safari, and Firefox have built-in viewers, so you can easily open them without any extra software. But if you want to edit this format, you’ll need specialized (and often paid) tools.

Creating PDFs Made Easy

The easiest way to turn your fancy Word doc into a PDF is by simply saving it as one. In most software, it’s as easy as going to “File” > “Save As” and selecting PDF as the file format. Voila! Your document is now a sleek, polished PDF.

How to create PDF file step 1

How to create PDF file step 2

For the Curious Techies

For those of you who want to understand the PDF file format —perhaps you’re a developer or just super curious—you can dig into its structure by viewing the PDF  objects (the building blocks of the file). PDF dictionary is one of the key parts of the the object. Finding out the PDF version is also useful for development, as it helps you understand the specific features available in that file. We also have an article for you around FAQs about the file format.

So, in a nutshell: PDFs are your best friend when you want to share documents without worrying about messy formatting. Just don’t try editing them with a regular text editor—you’ll only end up staring at a sea of random characters.



Our software libraries allow you to

Convert PDF files to HTML
Use PDF Forms in a web browser
Convert PDF Documents to an image
Work with PDF Documents in Java
Read and write HEIC and other Image formats in Java
Mark Stephens Mark has been working with Java and PDF since 1999 and is a big NetBeans fan. He enjoys speaking at conferences. He has an MA in Medieval History and a passion for reading.