Word to PDF

A simple document, ready to share.

Convert Word documents locally with LibreOffice, including images, tables, headers and pagination. Font substitutions and unsupported Office features can affect the result.

How to use Word to PDF

1. Open your document from your device.
2. Adjust the settings and preview the result.
3. Read text results on screen or download your file. Your original remains untouched.

Local by design

Your documents are processed on your device. No account, payment or document upload is required.

Enable JavaScript to use the document workspace.

Prepare a stable reading copy of a Word document

Word to PDF is useful when the recipient needs fixed pages rather than an editable document. SandboxPDF accepts the listed Word-compatible formats and uses LibreOffice locally for the layout-preserving mode. The source is not uploaded to a conversion service. Different Office engines can still interpret fonts, sections and advanced features differently, so review the exported pages.

Start with a source that is ready to share. Resolve tracked changes, comments and field updates in the authoring application where appropriate. Check the intended page size and whether headers, footers and section breaks are deliberate. Conversion cannot decide which revision or review material the recipient should see.

Choose the appropriate conversion mode

1. Open the supported document from your device.
2. Choose the LibreOffice layout mode when pagination, images and tables matter.
3. Use the lightweight text mode only when a simpler text-based reading copy is sufficient.
4. Allow the local engine to initialize and create the result.
5. Download the PDF and compare it with the source’s intended print layout.

The layout engine downloads about 247 MB on first use. A desktop browser is recommended for substantial Office work. Initialization time is separate from conversion time, and browser caching may reduce later downloads without eliminating memory requirements. Keep the tab open and avoid running several heavy jobs at once.

Check fonts and page boundaries

Font substitution can change line lengths and paragraph heights. A heading can move to the next page, a table can gain a row break or a caption can become separated from its image. Check dense pages and the last lines of sections rather than inspecting only the cover. A matching total page count does not prove identical pagination.

Review accented names, non-Latin scripts, mathematical symbols and special bullets. Missing characters can appear as empty boxes or substitutes. If exact typography matters, returning to the source application and using its approved export path may be preferable. A browser converter should not be treated as a guarantee of arbitrary Office-layout fidelity.

Tables, anchored graphics and mixed page orientations deserve particular attention. Inspect headers and footers across section boundaries. If the source contains a table of contents or page-reference fields, check that the exported references are meaningful. Do not assume that a converter updates every field exactly as the source application would.

Verify the document the recipient will receive

Open the downloaded PDF in a fresh reader and check page count, orientation, important values and the final page. Test text selection if searchability is required. If printing matters, review paper size and scaling in print preview and make a representative physical proof.

Choose a filename that distinguishes the PDF delivery copy from the editable source. Keep both where appropriate, because the PDF is not a substitute for the source’s styles and editing structure. If a formal process requires PDF/A or a certificate signature, perform the specified additional workflow and verify the final file after those steps.

For a failed conversion, note whether the engine failed to initialize or the document failed after loading. Try a small representative source to distinguish environment constraints from a particular file feature. Read Office layout checks for the detailed review and the print checklist before a print run.

Frequently asked questions

Is the document uploaded for conversion?

No. The browser downloads the engine and processes the selected document locally.

Why is the first conversion slow?

The Office engine has a substantial first-use download and initialization cost, even when the input is small.

Will every Word layout match exactly?

No. Fonts and unsupported Office features can affect layout. Inspect the exported PDF against the intended source output.

What does text-only mode preserve?

It prioritises a simpler text representation rather than the original full page layout. Use layout mode when graphics and pagination matter.

Should I delete the source after exporting?

Keep it if future editing or recordkeeping requires it. The PDF does not preserve all original editing relationships.