Why Formatting Breaks When You Convert Word to PDF
Word documents are designed to be editable and flexible. They reflow text based on the viewer's screen, installed fonts, and Word version. PDFs, on the other hand, are fixed-layout — every element has an exact position on the page.
The conversion process has to translate a flexible document into a fixed one. When the conversion tool doesn't have the same fonts, or interprets spacing differently, things shift. The three most common problems are:
- 1.Font substitution — the tool replaces your font with a similar one that has different character widths, causing text to reflow across lines and pages.
- 2.Spacing and margin changes — paragraph spacing, line height, and margins may be interpreted slightly differently by the conversion engine.
- 3.Image and object shifts — floating images, text boxes, and shapes can move when the surrounding text reflows.
Fix 1: Prevent Font Substitution
Font substitution is the number one cause of formatting issues. Here's how to prevent it:
- ✓ Use standard fonts. Arial, Calibri, Times New Roman, Georgia, and Verdana are available on virtually every system. These convert perfectly every time.
- ✓ Embed custom fonts. If you must use a non-standard font, embed it in your Word document: go to File > Options > Save > check "Embed fonts in the file." This increases file size but guarantees the correct font is used.
- ✓ Avoid decorative fonts for body text. Script fonts, handwritten fonts, and display fonts are more likely to cause issues. Use them sparingly (titles only) and stick to standard fonts for paragraphs.
Fix 2: Lock Down Spacing and Margins
Word's default paragraph spacing is "contextual," meaning it adjusts based on surrounding content. This flexibility can cause surprises during conversion.
- ✓ Set explicit line spacing. Instead of "Multiple" or "Auto," use exact values (e.g., 1.15 or 1.5). Go to Paragraph > Line Spacing > Exactly or At Least.
- ✓ Use fixed paragraph spacing. Set specific "Before" and "After" spacing values in points rather than relying on Word's defaults.
- ✓ Check margins. Make sure your margins are set explicitly in Page Layout > Margins > Custom Margins. Avoid "Narrow" or "Wide" presets if you need exact control.
Fix 3: Keep Images Where They Belong
Images that float or wrap with text are the most likely to shift during conversion. Here's how to keep them in place:
- ✓ Use "In Line with Text" wrapping. This anchors the image to a specific position in the text flow. Right-click the image > Wrap Text > In Line with Text.
- ✓ Anchor floating images. If you need text wrapping, lock the anchor position: right-click > Size and Position > Position tab > check "Lock anchor."
- ✓ Insert at the right resolution. Don't resize images by dragging handles in Word — this stores the full-size image and just displays it smaller. Resize images in an image editor before inserting.
- ✓ Don't compress images in Word. Word's built-in compression can reduce quality unexpectedly. If you need a smaller file, convert to PDF first and then compress the PDF instead.
The Right Way to Convert (Step by Step)
Prepare your Word document
Check fonts (use standard or embed custom ones), set explicit spacing, and anchor images. Review the document in Print Preview to see exactly how it will look.
Upload and convert with OmnisPDF
Go to the Word to PDF tool and upload your .docx file. OmnisPDF's conversion engine handles fonts, spacing, and images accurately — click Convert and wait a few seconds.
Compare the output
Open the PDF and compare it with your Word document page by page. Check the last line of each page (where text reflow is most visible), table alignments, and image positions.
Common Pitfalls to Avoid
- ✓ Don't use Word's "Save as PDF." Word's built-in export can produce inconsistent results depending on your Word version and operating system. A dedicated converter like OmnisPDF's Word to PDF gives more reliable output.
- ✓ Avoid "Print to PDF" on Windows. The Microsoft Print to PDF driver often changes margins and can drop hyperlinks. It's a last resort, not a first choice.
- ✓ Don't mix Office formats. If your Word document has embedded Excel charts or PowerPoint slides, convert each element separately and use Office to PDF for the best results.
Quick Verification Checklist
After converting, open the PDF and check these items:
- ✓ Fonts look correct (no unexpected substitutions)
- ✓ Text doesn't overflow or get cut off at page edges
- ✓ Images are in the right positions and at full quality
- ✓ Tables are aligned and columns haven't shifted
- ✓ Headers and footers appear on every page as expected
- ✓ Hyperlinks are clickable
- ✓ Page count matches the original document