The format you send a file in telegraphs what the recipient is supposed to do with it. Word says "edit this." PDF says "this is final." Get the signal wrong and the recipient either can't fill in the form you sent, or re-types your contract into a Word doc so they can mark it up.
Here's the practical breakdown for business documents.
Send a PDF when
- The recipient should not edit the document. Contracts, invoices, final reports, signed agreements, official notices. PDF locks the layout — what you wrote is what they see.
- Fonts and formatting matter. PDF embeds them. Word depends on the recipient having the same fonts installed, which they usually don't.
- The document will be printed. PDF prints identically on every printer. Word formatting drifts depending on the printer driver.
- You're sending to multiple recipients. Everyone sees the same document. Word lets each recipient edit their copy, which means you'll get back five different markups.
- You're archiving it. PDF/A is the archival standard; it renders the same way decades from now.
Send a Word doc when
- The recipient needs to fill in the form. A template they need to complete — a vendor onboarding form, a reference letter, a statement of work they need to revise.
- You're collaborating on the draft. Track changes, comments, and inline edits are Word's strong suit.
- The content is text-heavy and will be revised multiple times. Word handles 50 revisions of a 30-page document better than any other format.
- The recipient will copy the content. Word makes text selection easy. PDF text selection depends on whether the file was created with selectable text or scanned as images.
The conversion workflow
Most business documents move back and forth between the two formats. The pattern that works:
- Draft in Word (collaborate, track changes, comment).
- Finalize the content.
- Send as PDF (lock the layout, prevent edits).
When you receive a PDF and need to edit it, convert it back to Word first. The result is editable, not just an image of the page. If you're moving a Word doc into a blog/wiki/static site, convert to Markdown instead — the result is clean text with proper heading hierarchy.
One rule of thumb
If you're sending the document and the recipient's job is to read it, send PDF. If the recipient's job is to do something with the text inside it, send Word. The format signals the workflow.
DocShop converts both directions — Word to PDF, PDF to Word, Word to Markdown, PDF to Markdown. Free up to 3 conversions a day, files deleted in an hour.