Use Save As PDF or Export, not Print to PDF. Export keeps hyperlinks, bookmarks and the tagged structure screen readers need. Print to PDF flattens all of it into a picture-perfect but inert page.
If the layout shifts, it is nearly always fonts. Word substitutes anything missing and the substitute has different letter widths, so the text reflows.
The reason anyone converts a Word file to PDF is to stop it changing. A .docx opened on another machine is reassembled there using that machine's fonts, that version of Word, and its own idea of margins. A PDF carries the finished page and the fonts that drew it, so what you saw is what they see.
Why Word documents move and PDFs do not
Word stores content and formatting instructions, not a finished page. When it opens a document it lays the text out live, deciding where each line breaks based on the exact width of each character in the font being used.
If that font is not installed, Word substitutes a different one. The substitute has different character widths, so lines break in different places, paragraphs grow or shrink, and everything after them moves. A document that was four neat pages becomes five with a heading stranded at the bottom of page three.
Content plus formatting rules. The page is rebuilt on every machine that opens it.
Finished page geometry with fonts embedded, so nothing is recalculated.
A missing font is replaced by one with different letter widths, and the text reflows.
Export, not print
Both routes produce a PDF and they produce quite different ones. The difference is invisible until someone tries to click a link or jump to a heading.
Keeps the document intelligent
- Hyperlinks stay clickable
- Headings become PDF bookmarks
- Tagged structure is written for screen readers
- Text stays selectable and searchable
- Table of contents entries remain navigable
Produces a flat picture of the pages
- Hyperlinks become plain blue underlined text
- No bookmarks, no outline
- No tagged structure, so accessibility is lost
- Text usually still selectable, structure is not
Making sure the fonts come with it
Export embeds the fonts it is permitted to embed. Most do permit it, and a few licensed fonts do not, in which case Word substitutes silently and the PDF is built from the substitute. What the recipient then sees is covered in why PDF fonts look different on another computer.
Word has an option to embed fonts in the .docx itself, under File, Options, Save. It matters when someone else will open or convert the file on a machine without your fonts. Your own export already has them, because the fonts are installed where you are exporting.
Without Word on the machine, PDFslime's Word to PDF converter lays the .docx out in the browser and sets the text in its own embedded font. Nothing goes missing on the reader's side, but the line breaks will not match Word's, so use Word's own export when the exact layout is the point.
The usual surprises
A handful of issues account for nearly every complaint about Word to PDF conversion, and all of them are fixable before export.
- Text shifted or reflowedFont not embedded
- Extra blank page at the endTrailing empty paragraph
- Images at low resolutionCompression setting on export
- Links not clickableExported via Print to PDF
- Comments visible in the PDFMarkup shown at export time
- Tracked changes appearingDisplaying markup, not final
The comments and tracked changes cases deserve particular attention, because they leak internal discussion to whoever receives the file. Word exports what is currently displayed. If the document is showing markup when you export, the markup is in the PDF. Set the review view to show the final document with no markup before exporting, and accept or reject changes if the document is final.
After the conversion
The exported PDF is a new document with its own properties, and two of them are worth a moment.
It carries metadata taken from the Word file, including the author name and the original document title, which for anything built from a template may name a previous client. And if the document will be emailed, its size matters: Word keeps images at high resolution unless told otherwise, which is generous for something that will only be read on a screen.
Open the document properties and confirm the author and title fields say what you want them to say. Work built from a template often carries someone else's name.
Check the file size if it is heading into an email. A large export almost always means large images, and compressing the finished PDF once deals with them without touching the .docx.
Convert Word to PDF without Word installed
Images, tables and lists come through intact, and the document is never uploaded.
Common questions
Getting a faithful result.
01Why does my layout change when I convert Word to PDF?
Because a font was substituted with one whose letters are a different width, so lines break in different places and everything after them moves. Save As PDF on your own machine embeds the fonts it is licensed to. If someone else will convert the .docx, File, Options, Save, Embed fonts in the file sends the fonts along with it.
02Should I use Save As PDF or Print to PDF?
Save As or Export. It preserves hyperlinks, bookmarks and the tagged structure that screen readers depend on. Print to PDF produces a visually identical file with none of that, which matters as soon as anyone tries to click a link or navigate the document.
03Why is there a blank page at the end of my PDF?
Usually an empty paragraph after the last content, often left behind when a table was deleted. Turn on paragraph marks in Word, delete the trailing mark, and re-export.
04Why are my tracked changes showing in the PDF?
Word exports the document as currently displayed. If the review view is set to show markup, the markup is rendered into the PDF. Switch the display to the final version without markup, or accept the changes outright, before exporting.
05Will my hyperlinks still work?
Yes, if you exported rather than printed. Export writes real link annotations that remain clickable. Print to PDF produces blue underlined text that looks like a link and does nothing.
06Why is my exported PDF so large?
Almost always images. In the Save As dialog, choosing Minimum size (publishing online) instead of Standard lets Word reduce them on export. If the file is still too big, compress the finished PDF in a single pass rather than shrinking the pictures inside the .docx.