Is this DOCX to PDF converter really free?

Yes. Up to 5 files at a time, no signup, no catch. The free tier adds a small watermark to image output — Pro ($9.99/mo or $49/yr) removes it, raises the file size limit to 500 MB, and unlocks unlimited batch conversion.

Are my files uploaded to a server?

No — and you can verify it yourself. Open DevTools → Network tab, then convert a file. You'll see zero upload requests. Everything runs right in your browser. We never see your files.

How long does conversion take?

Usually 1–3 seconds for a typical file. The very first conversion on a fresh page load may take 5–20 seconds while the converter engine loads — after that it's instant. Your CPU does all the work locally.

What is the file size limit?

Free: up to 10 MB per file, 5 files per batch. Pro: up to 500 MB per file, unlimited batch. If you're working with large videos or RAW photos, Pro is built for that.

Can I batch convert multiple DOCX files at once?

Yes — drop multiple files at once (or Ctrl/Cmd+click to select them) and they all convert in parallel. Free accounts handle up to 5 files per batch; Pro has no limit.

Will my document formatting survive conversion?

Standard formatting — text, headings, bold/italic, tables, and inline images — transfers reliably. Complex layouts with floating objects, custom fonts, or SmartArt may simplify. Always give the output a quick review before sharing.

Can I convert a password-protected document?

No — encrypted files can't be read without decryption, and we never ask for passwords. Remove the password protection first, then convert.

Will my Word formatting be preserved in the PDF?

Our converter preserves paragraph styles, bold, italic, headings, bullet lists, and inline images. Complex layouts with floating images or SmartArt may simplify slightly.

Can I convert a password-protected DOCX to PDF?

No — encrypted DOCX files can't be read without the password, and we never ask for it. Remove the password protection in Word first (Review → Protect Document → Remove protection), then convert.

How private is this converter?

Completely private — by design, not policy. There is no upload endpoint. Files are processed right inside your browser tab and disappear the moment you close it. We collect only anonymous page-view counts; your file content is never seen or stored.

DOCX to PDF Converter — Free Word to PDF Online

How to convert DOCX to PDF online

1
Drop your DOCX file
Drag and drop your Office Open XML Document file onto the converter, or click to browse your files. You can select up to 5 at once. Nothing leaves your device — conversion happens right here in the browser.
2
Hit Convert — it happens locally
Click Convert and watch it go. There's no upload, no server queue, no waiting. The converter runs Office Open XML Document → Portable Document Format entirely in your browser tab. Most files finish in 1–3 seconds.
3
Download your PDF
Your Portable Document Format file is ready. Click Download, or grab a ZIP if you converted a batch. Close the tab and everything disappears — no copies kept anywhere.

DOCX vs PDF: format overview

DOCX

Office Open XML Document

Microsoft · 2007

Compression: lossless
Transparency: No

✓ Fully editable with tracked changes
✓ Universal word processor format
✗ Layout shifts between apps

PDF

Portable Document Format

Adobe Systems (John Warnock) · 1993

Compression: lossless
Transparency: No

✓ Fixed layout — looks identical on every device
✓ Embeds fonts, images, and vector graphics

DOCX magic bytes: 50 4B 03 04 (ZIP-based)

PDF magic bytes: 25 50 44 46

Why convert DOCX to PDF?

Word documents are not portable. Open a DOCX on a different machine and the fonts shift, the spacing changes, the layout breaks. Send it to someone on a Mac when you created it on Windows and you'll see it differently than they do. DOCX is a living format — it renders differently depending on the software version, installed fonts, and OS.

PDF is the opposite. A PDF looks identical everywhere — every OS, every browser, every phone, every printer renders it the same way. When you need a document to look exactly as you designed it — for a job application, a proposal, a contract, an invoice, a university assignment — PDF is the only format that actually guarantees that.

The conversion preserves paragraph styles, headings, bold and italic, bullet lists, tables, and inline images. Complex layouts with floating images, SmartArt, or heavily customised fonts may simplify slightly. For standard text-heavy documents — letters, reports, CVs, essays — the output is faithful and ready to share.

Common reasons to convert DOCX to PDF:

›Submitting a CV, cover letter, or university assignment in a fixed, guaranteed format
›Sending a proposal or invoice that looks correct regardless of the recipient's software
›Locking a document's formatting before sharing it with a client or colleague
›Archiving a document in a format that won't break with future Word or OS updates

Quality & file size: DOCX to PDF

Typical file sizes: DOCX 50–200 KB → PDF 100–500 KB.

Both DOCX and PDF use lossless compression, so no quality is lost in conversion. The output PDF file will be visually identical to the DOCX source.

Color depth: DOCX supports standard color, PDF supports standard color.

Transparency: DOCX does not support transparency. PDF does not support transparency — transparent areas become solid white.

Frequently asked questions

Privacy: how FormatDrop handles your files

Your DOCX files are converted 100% inside your browser. They are never uploaded to our servers, never stored, and never seen by anyone other than you. This isn't a privacy policy claim — it's an architectural guarantee: our server has no endpoint that receives file bytes.