PDF vs DOCX
PDF fixes the layout, so it looks the same on every device and is the right format for anything final: contracts, invoices, submissions. DOCX is editable and reflows, which is what you want while the document is still being written. Send PDF, edit DOCX.
Side by side
| Spec | DOCX | |
|---|---|---|
| Type | Document | Document |
| Extensions | .docx | |
| Introduced | 1993 | 2007 |
| Compression | Both | Lossless |
| MIME type | application/pdf | application/vnd.openxmlformats-officedocument.wordprocessingml.document |
| Use it when | The layout must not change: contracts, invoices, reports, print-ready files. | A document is still being written, reviewed or collaborated on. |
| Avoid it when | The content is still being written or needs to reflow. Keep it in DOCX or Markdown until final. | Sending a final deliverable where layout must be guaranteed. Export to PDF. |
Where the usual answer breaks
Forms people have to fill in. A PDF form is fiddly to complete on a phone; a DOCX is not, if the recipient has Word.
- Layout, fonts and pagination are identical everywhere
- Supports digital signatures, encryption and form fields
- PDF/A is a recognised standard for long-term archiving
- Hard to edit, because it describes a page rather than a document structure
- Reflows badly on small screens
- Text in a scanned PDF is just an image until OCR is run
DOCX
- Editable, with tracked changes, comments and styles
- Open standard, so many applications can read and write it
- Content reflows to fit the screen or page
- Layout can shift between applications and platforms
- Not suitable as a final, fixed-layout deliverable
Tools for these formats
PDF to Markdown
Converts PDF pages to Markdown, keeping full-page visuals, extracting text and images, with optional OCR for scanned pages.
PDF to Image
Extracts every page of a PDF as a high-resolution JPG or PNG image file, saved individually so each page downloads on its own.
PDF to Word
Converts embedded PDF text to selectable Word text boxes with an approximate layout, or creates a visual page-image copy. Scanned PDFs need OCR first.
PDF to PDF/A
Normalizes PDF pages into self-contained PDF/A-2b files, the standard format built for long-term document archival storage.
PDF to PowerPoint
Converts PDF pages to PowerPoint as images, or extracts embedded text into editable text boxes with an approximate layout. Scanned text needs OCR first.
PDF to Excel
Converts PDF pages to worksheet images, or groups embedded text into editable rows. Table structure is inferred and complex layouts may need cleanup.
Other comparisons
Last updated 2026-08-12