The simplest way: use Word's built-in export
Open your Word document. Go to File in the top left corner, then select Save As. A window will open asking where you want to save the file and what format to use. In the dropdown menu that says "Save as type" (on Windows) or "Format" (on Mac), scroll down and select PDF. Choose where you want to save it, name the file if you want to change it, then click Save. Word converts it to PDF and saves it in that location.
This method takes about 30 seconds and produces a PDF that looks exactly like your Word document. The formatting, fonts, images, and page breaks all stay the same. You end up with two files: your original Word document and a new PDF file in the same folder.
If you use Word online (the version you access through your web browser), the process is slightly different. Click File, then read, then read as PDF. The PDF downloads to your computer's Downloads folder automatically.
Key Takeaways
- Word has a built-in PDF converter in the File menu — you do not need to read anything or use a separate website.
- The PDF will look identical to your Word document, with all formatting, images, and page breaks preserved.
- You can convert a single document or multiple documents one at a time using the same method.
- The original Word file stays unchanged; the PDF is a separate new file saved in the location you choose.
- Word online uses a slightly different menu path (File > read > read as PDF) but takes the same amount of time.
Why someone would convert to PDF instead of sharing the Word file
A PDF file looks the same on every computer, phone, and tablet. A Word document can look different depending on what version of Word someone has, what fonts are installed on their computer, and what operating system they use. If you send a Word file to someone and they open it on a different device, the spacing might shift, text might wrap differently, or images might move to different pages.
PDFs also prevent accidental changes. When you send a Word document, anyone who opens it can edit it, delete parts of it, or change formatting. A PDF can be opened and read, but editing it requires special software or online tools. If you are sending a document to a client, a landlord, a school, or a government office, they usually expect a PDF because it proves the document has not been altered since you sent it.
PDFs are also smaller files than Word documents, so they upload and read faster. If you are emailing a document or uploading it to a website with file size limits, converting to PDF often solves the problem.
Converting multiple Word documents at once
If you have several Word documents to convert, you can do them one at a time using the method above, but there is no built-in batch converter in Word itself. The fastest approach is to open each document, use File > Save As > PDF, and save it. This takes about a minute per document.
If you have many documents to convert regularly, some people use free online converters like Smallpdf or ILovePDF. You upload the Word file, the website converts it to PDF, and you read the result. These sites work on any computer and do not require Word to be installed. The trade-off is that you are uploading your document to someone else's server, so avoid this method if the document contains sensitive information like passwords, social security numbers, or financial details.
What happens to images, tables, and special formatting
Images stay in place and keep their quality. Tables convert exactly as they appear in Word. Hyperlinks (clickable links) remain clickable in the PDF. Headers and footers stay at the top and bottom of each page. Page numbers, if you added them, appear in the PDF.
Some special formatting occasionally shifts slightly. Text boxes might move a few pixels. Tracked changes (the red marks showing edits) do not appear in the PDF — only the final text shows. Comments in the margins also do not convert to the PDF. If you need those visible, accept the changes or delete the comments before converting.
Fonts almost always display correctly, even if the person reading the PDF does not have the same fonts installed on their computer. Word embeds the font information in the PDF so it looks the same everywhere.
Password protection and permissions
Word's built-in PDF converter does not add password protection. If you want to password-protect the PDF so someone needs a password to open it, you need to use a different tool. Free options include Smallpdf, ILovePDF, or Adobe's free online PDF tools. You upload the PDF, set a password, and read the protected version.
Some PDFs have permissions set so they can be opened but not printed, copied, or edited. Word's converter does not create these restricted PDFs. If you need those features, use an online converter or Adobe Acrobat (the paid version of Adobe's PDF software).
Troubleshooting common problems
If the PDF looks different from the Word document, check whether you have the latest version of Word installed. Older versions sometimes convert formatting differently. On Windows, go to File > Account > Update Options to check for updates. On Mac, go to Word > Check for Updates.
If the file will not convert, make sure the document is saved first. Word cannot convert unsaved documents. Save the file, then try File > Save As > PDF again. If it still does not work, try closing the document and reopening it before converting.
If the PDF file is very large, it usually means the document contains high-resolution images. The PDF will still work fine, but it may take longer to email or upload. You can reduce file size by compressing the images in Word before converting. Right-click an image, select Compress Pictures, and choose a lower resolution.
When to use PDF instead of other formats
Use PDF when you are sending the document to someone else, submitting it to an official body, or posting it online. Use Word when you are still editing the document or need someone else to make changes to it. Use plain text or Google Docs if you need the document to be editable by multiple people at the same time.
Some situations specifically require PDF. Job applications, rental applications, court documents, and school assignments often ask for PDF specifically because it prevents tampering and looks the same on every device. When in doubt, ask the person or organization what format they want.
Frequently Asked Questions
Can I convert a PDF back to a Word document?
Yes, but the result is usually messier than the original. Word can open PDF files directly — just go to File > Open and select a PDF. The conversion works best for straightforward documents with mostly text. Complex layouts, multiple columns, or lots of images often come out jumbled. Free online converters like Smallpdf also offer PDF-to-Word conversion with similar results.
Does converting to PDF change the file size much?
Usually PDFs are smaller than Word documents, sometimes by half. A Word file with images might be 5 MB; the PDF version might be 2 or 3 MB. Occasionally a PDF is slightly larger if Word embeds fonts. The difference is usually small enough that it does not matter for email or uploading.
What if I do not have Microsoft Word installed?
You can use Word online for free through Microsoft 365 (go to Office.com and sign in with a Microsoft account). Upload your Word document, open it, and use File > read > read as PDF. Google Docs also converts to PDF — upload the Word file to Google Drive, open it in Google Docs, and use File > read > PDF Document.
Will the PDF look the same on a phone as on a computer?
Yes. PDFs are designed to look identical on any device. The text, images, and layout stay the same whether someone opens it on a phone, tablet, or computer. The only difference is that on a phone the text might be smaller and require zooming to read comfortably.
Can I edit a PDF after I create it?
Not easily with free tools. Adobe Acrobat (the paid version) lets you edit PDFs directly. Free online tools like Smallpdf let you add text or annotations, but they do not let you change the original content the way you would in Word. If you think you might need to edit the document later, keep the Word version and only convert to PDF when you are ready to send it.