Word to PDFHow to Convert Word to PDF Without Losing Formatting
A PDF that doesn't match the Word document nearly always comes down to one thing: Word lays your pages out for the printer driver and the fonts installed on your machine, so anything that depends on either can move the moment the target changes. Fix the pagination rules inside Word first — Keep with next, Keep lines together, and table row splitting — and the layout will hold through the export, whichever tool you use to make the PDF.
Why the layout moves at all
A .docx does not store a page. It stores rules — this paragraph is 11pt, this indent is 0.5", this table column is 2.3" wide — and Word resolves those rules into pages every time the file is opened, using the fonts present on that machine and the paper metrics reported by the current printer driver. A PDF is the opposite: one final layout pass, frozen.
Two things change during that pass. The first is font substitution. If the document asks for Calibri or Aptos and the rendering engine doesn't have it, a substitute goes in with different character widths. A line that used to end at "...quarterly" now ends one word earlier, the paragraph gains a line, and every page after it shifts down. The second is page geometry — margins, gutters, and page size that were set per section rather than for the whole file.
This is why the damage always looks worse toward the end of a long document. One extra line on page 3 pushes a heading off page 11 and splits a table on page 18. Fixing the symptom on page 18 is wasted work; fix the rules instead. If the substituted typeface itself is the visible problem, that is covered separately in why fonts change when you convert Word to PDF.
Fix pagination before you export
Select the affected paragraphs, then right-click and choose Paragraph (or click the small dialog launcher in the Paragraph group on the Home tab) and open the Line and Page Breaks tab. Four checkboxes do almost all the work:
- Widow/Orphan control — on by default, and should stay on. It stops a single line of a paragraph from dangling alone at the top or bottom of a page by moving the paragraph so at least two lines travel together.
- Keep with next — ties a paragraph to the one that follows it. Apply this to every heading style in the document and you eliminate the single most common complaint about exported PDFs: a heading stranded at the bottom of a page with its text on the next.
- Keep lines together — holds all the lines of one paragraph on a single page. The distinction matters: Keep with next acts between two paragraphs, Keep lines together acts within one. Use it on captions, addresses, and short quotes. Do not apply it to long body paragraphs, or you will push half-empty pages through the whole document.
- Page break before — forces the paragraph to start a new page. Use this, or a real page break from Layout > Breaks > Page, instead of pressing Enter until the text moves. Stacked empty paragraphs are the leading cause of blank pages appearing in the PDF.
Do this before you touch anything else. Pagination settings are what survive a change of font or page target; manual spacing is what breaks.
Tables: stop rows splitting and stop using AutoFit
Tables break in two distinct ways, and each has its own setting.
A row splits across a page boundary. Click inside the row, right-click, choose Table Properties, open the Row tab, and clear Allow row to break across pages. With that box cleared the row will not split no matter how much text it holds — it moves to the next page whole. If a row still splits after this, the cell content is genuinely taller than one page. Note that Keep with next keeps table rows together but has no effect inside a single row.
Columns re-proportion themselves. Select the table, go to the Layout tab under Table Tools, and in the Cell Size group choose AutoFit > Fixed Column Width. AutoFit to Window recalculates column widths against the available text width every time the layout is resolved. Change the target — different margins, different gutter, a different renderer — and the columns re-proportion, cell text rewraps, row heights change, and the page breaks move with them. Fixed widths are absolute measurements and survive the trip.
Images: use In Line with Text
Select the picture, then use the Layout Options button that appears at its top-right corner, or go to Picture Format > Arrange > Wrap Text, and choose In Line with Text. That is the default for a newly inserted picture, and it is the only wrap mode that behaves predictably: an in-line image is treated as a very large text character, sits in the text flow, and moves with the paragraph around it.
Every other wrap mode — Square, Tight, Behind Text, In Front of Text — makes the image a floating object anchored to a paragraph. When the text reflows, the anchor paragraph moves and the image jumps with it to somewhere you did not intend, or stays put while text runs across it. If you need text beside an image and you need it stable, put both into a two-column table with fixed column widths and no borders. That is a layout Word, our converter, and every PDF renderer agree on.
Image sharpness is a separate matter from position; see images blurry after converting to PDF.
Section, margin, and gutter traps
Open Layout > Margins > Custom Margins to bring up the Page Setup dialog, and check three things.
Multiple pages. If this is set to Mirror margins, the document has inside and outside margins rather than left and right, so odd and even pages have mirrored geometry. On a file destined for a screen-read PDF this is usually not what you want: insert one paragraph early in the document and the content that lands on the facing page re-wraps to a different measure. Set it to Normal unless you are genuinely printing double-sided for binding.
Gutter. The Gutter box adds extra space for a binding, positioned Left or Top. It is easy to set once and forget, and it silently narrows the text width on every page — which changes where every line wraps.
Which section you are editing. Page Setup applies to the current section unless you change the Apply to setting at the bottom of the dialog. A document assembled from several sources often carries section breaks that reset the page size or the margins mid-document, and that produces a PDF where page 6 is a different width than page 5. Turn on the ¶ button on the Home tab to make section breaks visible, then delete the ones you did not intend. Also confirm the page size itself: a document authored on A4 exports as A4, which is fine until someone prints it on US Letter and the whole page rescales.
What the converter on this site keeps, and what it simplifies
The converter here runs entirely in your browser — nothing is uploaded — and it is deliberate about what it reproduces. It preserves headings, bold, italic, underline, text colors and font sizes; left, right, first-line and hanging indents; bullet and numbered lists including letters and Roman numerals with correct restarts; tables with borders, merged cells and wrapped cell text; embedded JPG and PNG images copied into the PDF byte-for-byte rather than re-encoded; the page size and margins read from the document itself; and hyperlinks as real clickable annotations rather than blue text.
What it simplifies, plainly: headers and footers, footnotes and endnotes, floating text boxes, shapes, SmartArt, charts and WordArt, and multi-column section layouts. It also typesets in DejaVu Sans, which it embeds in the output — so a Calibri document comes out in DejaVu Sans, with different character widths and therefore different line breaks from what Word showed you. Everything in the sections above still applies, because those pagination rules are exactly what protects a document from a change of typeface.
Use Word's own Export instead when the exact typeface is contractual or brand-critical, or when the document depends on headers and footers, page numbers, footnotes, multi-column layout, text boxes or charts. The path is File > Save As, choose PDF in the file type list, and under Options leave Standard (publishing online and printing) selected. Reach for the browser converter when Word is not the constraint you are working under — no Office license, the wrong device, a file that is not allowed to leave your machine, or a stack of documents to get through. There are more routes in converting Word to PDF without Microsoft Word.
Check the result properly
Open the PDF at 100% zoom, not fit-to-window. Fit-to-window shrinks the page until a half-inch of vertical drift is invisible, which is how bad exports get sent.
Then compare page counts before you compare anything else. Word's status bar shows "Page X of Y"; if Y and the PDF's page count differ, something reflowed, and you now know to look for it rather than assuming the first page told you the truth. Jump to the last page next, not the first — drift accumulates, so the end of the document is where a small shift has grown into an obvious one.
Scroll the two side by side and look specifically for: a heading alone at the foot of a page, a table row split across a break, an image that has moved to the far side of its caption, and a table of contents whose page numbers no longer match the pages. A TOC does not update itself during export; update it in Word first, then convert. Finally, click two or three hyperlinks in the finished PDF in an actual PDF reader — a link that is merely blue and underlined is not a link.