Your old .doc files from a decade ago. The new computer doesn't have Word. The recipient asked for a PDF. Now what?
DOC vs DOCX
DOC is the binary Word format used from Word 97 to Word 2003. DOCX is the XML-based format from Word 2007 onward. Both still open in modern Word. Both convert to PDF identically.
There's no quality difference in the PDF output — the conversion handles both formats the same way.
Convert without Word installed
Flint's Word to PDF accepts DOC files directly. No Word required. Drop the file in, download the PDF.
This matters more for older DOC files than for DOCX — older Office is gone from most machines, but old DOC files persist.
Compatibility with modern systems
Once converted to PDF, the file lives forever. PDFs from old DOCs are indistinguishable from PDFs from modern Word — they open in any PDF viewer, print correctly, embed fonts where needed.
If you have an archive of old DOC files, converting to PDF in batch is a good archival strategy. PDFs age better than proprietary formats.
Watch for unusual fonts
Old DOC files often used fonts that aren't standard on modern machines. The converter substitutes; if the font matters, install the original before converting (or after, if you'll regenerate). Otherwise expect subtle layout shifts in some places.
FAQ
Do older DOC files still convert?
Yes — from Word 97 onwards. Very old DOC formats (Word 6 and earlier) may need a manual open-and-resave in modern Word first.
Will the PDF look like the DOC?
Very close. Font substitution may cause minor layout shifts; install original fonts to match exactly.
Should I upgrade to DOCX first?
Not necessary. The converter handles DOC directly. Upgrading the source helps if you'll be editing further in Word.
What about WordPerfect WPD files?
Different format — use a WPD-specific converter. WPD support isn't in the standard Word to PDF flow.
Old DOC files, new PDFs. Convert your DOC to PDF without installing Word.