How to Convert DOCX to PDF
Apr 3, 2025

While working on a project, you receive a DOCX file from a teammate or classmate. Now, you need to send it to your tutor or employer, but you want to ensure the formatting stays intact.
Or maybe you’ve downloaded your resume or report as a Word document and need a more professional, shareable document. That’s where converting DOCX files to the Adobe-invented portable document format comes in handy.
But what if you don’t have Microsoft Office installed?
We’ll walk you through multiple ways to convert to PDF format, including free online tools, desktop solutions, and mobile-friendly apps.
Why convert DOCX files to PDF files?
Sure, Microsoft Word files are great for editing and formatting. But when it’s time to share your document, you need to ensure that it looks consistent.
Convert your Word document to a PDF format to see these advantages:
Convert your Word files into PDF files in seconds: make them easier to store, share, print, and protect. You also won't encounter any compatibility issues as PDFs work seamlessly across different devices and operating systems.
Preserve formatting and design: say goodbye to shifting fonts, misplaced images, or broken layouts. PDF files retain all formatting styles, including fonts, line spacing, page numbers, and indentations, ensuring a consistent, professional appearance.
Make last-minute changes before finalizing: some online Word to PDF tools allow you to revise your file before conversion.
Enhanced security: PDFs allow you to password-protect, encrypt, and restrict editing to keep sensitive information safe from unauthorized access.
Smaller file size: unlike a doc file, a PDF document can be compressed without losing quality, making it easier to store, share, and upload online.
Free DOCX to PDF converters
There are multiple ways to convert files to PDF. The easiest method is through Microsoft Word, which allows you to save documents as PDFs in just a few clicks.
However, this may not always be the most budget-friendly option, especially if you don’t have Microsoft Office installed.
Fortunately, there are free alternatives:
MobiPDF: a simple yet powerful tool designed for quick and efficient DOCX to PDF conversion (did we mention it also has a free online converter?).
Adobe Acrobat: widely used with both free and paid options to convert Word files.
Google Drive: upload your DOCX file, then download it as a PDF.
Canva: import doc files and export them as PDFs. Canva is a great option for documents with rich visual elements.
Pages: Apple’s built-in Pages app allows you to export Microsoft Word files as PDFs.
Online converters: websites like Smallpdf, Sejda PDF, and PDF2Go offer free tools as well.
How to Convert a DOCX to PDF using online tools
If you need a fast, hassle-free way to convert a Word file to a PDF, online tools are no doubt convenient. With MobiPDF, you can easily transform your Word document into a PDF online, and here's how.
Step-by-step guide for the MobiPDF online converter

Drag and drop your DOCX file into the converter, and the process will begin automatically. MobiPDF’s free online tool also supports conversions between PDF, Word, PowerPoint, and image files.
If you're uploading a PDF file instead, you can select the file format you want to convert it to.
Once complete, simply click "Download" and save your file.
Why use MobiPDF's online converter?
Online converters are ideal for quick, on-the-go file conversions, as:
No installation is required.
They're compatible with Windows, macOS, Linux, and mobile devices.
MobiPDF's online converter retains formatting, images, and text clarity.
Any files uploaded are automatically deleted from the MobiPDF server after download.
Keep in mind
While online converters are convenient, they do have some limitations:
You’ll need a stable connection.
Some free tools impose limits on file size or daily conversions.
How to convert a DOCX to PDF using desktop software
If you frequently need to convert doc files to PDF, a desktop software conversion tool is the better way to go as it typically offers a more reliable, secure, and flexible experience.
With MobiDocs, converting your Word document into a PDF file format is quick and straightforward.
Step-by-step guide to converting with MobiDocs

Open your DOCX file in MobiDocs.
Go to the File tab and select Convert to PDF.
Name your file, choose where to save it, and hit Convert.
Why convert your files with MobiDocs?
Desktop software like MobiDocs provides several advantages over online tools:
Convert files anytime, even without Wi-Fi.
Ensure your document's layout, fonts, and structure remain intact.
Transform multiple Microsoft Word files to PDF at once.
Support for a wider range of file formats beyond DOCX and PDF.
OCR technology to convert scanned documents into editable text.
Things to consider
While desktop solutions offer more control and reliability, keep in mind that you'll need to install them on your device, which could be a drawback if you are limited in storage space.
Converting DOCX to PDF on mobile devices
Need to convert a DOCX file on the go? Mobile apps make it easy to turn Word documents into PDFs directly from your smartphone or tablet.
Whether using MobiDocs, Adobe Acrobat, or Microsoft Word, you can convert files quickly without needing a computer.
How to convert with the MobiDocs app

Here's how to transform your files with the MobiDocs app:
Download and open MobiDocs on your mobile.
Open your DOCX file within the app.
Tap the three dots in the upper-right menu and select "Convert to PDF."
Save or share your converted PDF directly from your phone.
Why convert your files with MobiDocs?
Using a mobile PDF converter has several advantages:
Convert documents anytime, anywhere.
Handle document conversions without a computer.
Get started without needing a subscription.
Keep in mind
While mobile apps are quick and convenient, they do have some limitations. For example, some mobile converters have fewer options compared to desktop solutions.
Tips for converting DOCX to PDF efficiently
To ensure a smooth and hassle-free conversion, keep these four tips in mind:
Choose the right tool: if you need to quickly convert a single file, an online tool is the best option. For bulk conversions or advanced formatting control, desktop solutions are more efficient.
Check the formatting: some converters may alter fonts, spacing, or photos. Always review the converted PDF to ensure it looks as expected. If it doesn't, choose other software that does a better job at retaining the original document formatting.
Reduce file size: large PDFs can be difficult to send or store. After conversion, use a compression tool to shrink the file while maintaining quality.
Consider security: if handling confidential documents, choose a converter that offers encryption, password protection, or restricted editing.
Conclusion
Convert DOCX files to PDF to ensure consistent formatting, security, and easy sharing across different devices. Whether you need a quick online conversion, a reliable desktop solution, or a mobile-friendly option, there are tools out there that can suit any workflow, as long as you know where to start looking.
If you frequently work with PDFs and need high-quality, secure, and efficient conversions, MobiPDF offers a seamless way to convert, edit, and manage your documents.
Try MobiPDF today to simplify your file conversions!
By day, Reny is a dedicated copywriter; by night, she’s an avid book reader. With over four years of copywriting experience, she has worn many hats, creating content for industries like productivity software, project finance, cybersecurity, architecture, and professional growth. Reny’s life goal is simple: to craft content that speaks to her audience and helps solve their challenges— big or small—so they can save time and be the best version of themselves.