How to Save a Word Document as a PDF

Word's own export is the right tool for this and it is not close. Word knows where its page breaks, styles, fonts and headers are, so the PDF it produces matches the document exactly. Nothing reading the file from outside can do as well, which is why this guide is mostly about the options rather than about alternatives.

Where a browser tool helps is the adjacent cases: plain text that never needed a word processor, which text to PDF handles with the page size and margins under your control, and combining the exported PDF with others.

Why export at all

A .docx renders differently on different machines. Fonts the recipient does not have get substituted, which reflows the text and moves the page breaks; different Word versions handle spacing slightly differently; and anyone can edit it, deliberately or not. A PDF fixes the layout and makes casual editing awkward, which is why every process that receives documents at scale asks for one.

The export itself

File → Save As, then choose PDF from the file type list. Or File → Export → Create PDF/XPS, which is the same operation by a longer route. On the Mac it is File → Save As with File Format set to PDF.

Do not use File → Print → Save as PDF unless you have to. It goes through the printer driver, which can drop hyperlinks, bookmarks and the document structure that screen readers use. The Save As route keeps all of it.

The options that matter

Optimize for offers Standard and Minimum size. Minimum downsamples images, which is right for email and wrong for anything being printed. If the result is too large at Standard, export at Standard and compress it afterwards with a control you can see.

Options is the button people never press, and it holds four useful things. A page range, so you can export part of a document. Document properties, which carries the author name from the account that wrote the file into the PDF — worth checking and clearing before anything goes to a client. Document structure tags for accessibility, which should stay on. And whether comments and tracked changes are included, which is the setting that occasionally sends a draft's editorial history to a client.

Keeping the fonts

Word embeds fonts in the PDF by default, which is what makes the export look identical everywhere. Two things break it.

Some fonts are licensed in a way that forbids embedding, and Word silently substitutes them. If a PDF looks wrong in a way you cannot explain, that is usually why — checking the PDF's font list in Acrobat under File → Properties → Fonts will show what actually made it in.

The other is a Word setting: File → Options → Save has an Embed fonts in the file option, and a sub-option to embed only the characters used. That sub-option is fine for a finished document and a problem if anyone will edit the PDF later.

Appending a Word document to an existing PDF

Word cannot add pages to a PDF, which is why this comes up as its own question. The route is export then merge: save the Word file as its own PDF, then merge it with the existing document in the order you want.

That is also the answer for combining several Word documents into one PDF. Export each separately and merge the results — each keeps its own formatting exactly as its author set it, where pasting them into one Word file first drags conflicting styles, numbering and section breaks along.

If the combined document needs continuous page numbering, merge first and then number the result. Numbering the Word files individually restarts the count at every join.

Without Word

Google Docs opens .docx and exports PDF through File → Download → PDF Document. LibreOffice Writer does the same and is free. Both are good, with the usual caveat that a complex layout may shift slightly in the round trip, since neither is reading Word's own rendering engine.

On a phone, the Word app exports PDF from its share menu, and both iOS and Android can print any document to PDF from the system print dialog.

For plain text — a note, a list, an exported log — none of this is necessary. Convert it straight to PDF and set the page size, margins and font yourself, without opening a word processor at all.

Frequently asked questions

How do I save a Word document as a PDF?

File → Save As and choose PDF from the file type list, or File → Export → Create PDF/XPS. Avoid Print → Save as PDF: it goes through the printer driver and can drop hyperlinks, bookmarks and accessibility structure.

How do I keep the same fonts when converting Word to PDF?

Word embeds fonts by default, which is what makes the export match. Some fonts are licensed against embedding and are silently substituted — check File → Properties → Fonts in the PDF to see what actually made it in.

How do I append a Word document to an existing PDF?

Export the Word file to its own PDF, then merge it with the existing document. Word cannot add pages to a PDF directly, which is why this needs two steps.

What does the "Optimize for: Minimum size" option do?

It downsamples images to reduce the file size. Fine for email, wrong for anything being printed. If a Standard export is too large, compress it afterwards with a control you can see rather than accepting Word's guess.

Will my tracked changes appear in the PDF?

Only if the option is set to include them, under the Options button in the Save As dialog. It is worth checking before sending a draft to a client — that dialog is also where the author name from your account gets carried into the PDF.

How do I save a Word document as a PDF without Word?

Google Docs and LibreOffice Writer both open .docx and export PDF. A complex layout may shift slightly, since neither uses Word's rendering engine. On a phone, the system print dialog can produce a PDF from any document.

How do I turn plain text into a PDF?

Skip the word processor — convert the text directly and set the page size, margins and font yourself. It is faster and gives you control a Word export inherits from the document instead.

In short

Use Word's Save As rather than its print dialog, press the Options button once to check what is going into the file, and export-then-merge whenever a Word document has to join an existing PDF.

Written by Mehran

Founder of QuickMerge. Practical guides built around the real behavior and limits of the tools. Connect on LinkedIn.