Definition. DOCX-to-PDF conversion reads a Word document and writes a PDF for distribution. OfficeAPI documents .docx as a Word input and PDF as a Word output, so the file can be processed on your device or on servers you manage without uploading it to a conversion service.
Which PDF output fits the document?
The Word matrix lists 2 PDF output variants: vector PDF and image PDF. Choose according to the downstream reader and verify the actual result with representative documents. The matrix establishes format support; it does not promise that every PDF has the same internal structure.
| Output | When to evaluate it | What to check |
|---|---|---|
| Vector PDF | A document intended for a PDF reader | Text, shapes, page boundaries and reader compatibility |
| Image PDF | A workflow that expects page imagery inside a PDF | Legibility, image quality and file size |
| In-app preview | A user needs to inspect the original Word file | Whether a new downloadable file is needed at all |
Do not assume that selecting PDF implies archival conformance, password protection or a particular PDF version. Those options are not established by the published format matrix.
How should the application handle conversion?
Use these 4 checks to design the workflow:
- Confirm that the input is a Word
.docxfile and review the conversion matrix for the desired output. - Choose one of the 2 invocation paths: dynamic library inside your application or a separate process.
- Have your application choose a separate output location so the source document remains available for comparison.
- Open the resulting PDF in the target reader and compare it with the original or an OfficeAPI Word preview.
These are application workflow decisions, rather than SDK calls. Use the supplied integration package's actual interfaces when implementing them.
What belongs in a layout check?
Include a document with long tables, one with headers and footers, and one with images near page boundaries in your own evaluation set. Check whether content has moved to another page, whether a table is cut off, and whether characters remain readable. Record the source and result together when investigating differences; the extension alone does not describe a document's layout.
For a workflow that needs individual page images rather than a PDF container, compare the PDF and image output choices.
Frequently asked questions
Does conversion require a network connection?
OfficeAPI processes documents offline. Your application's storage, distribution and other integrations determine whether the overall workflow uses a network.
Can I use the same workflow on a desktop and a server?
OfficeAPI supports 6 operating systems, including Windows, Linux and macOS. Package and validate the integration for each target environment.
Does a DOCX-to-PDF path guarantee identical layout for every file?
No universal layout guarantee follows from a support table. Validate the real documents and output readers used by your product.