Developer docs: Languages
Reference
Languages
The 16 languages embedded tools and the upload helper speak, and how to choose one.
Tools are fully translated in all 16 languages.
| Code | Language |
|---|---|
en | English |
fr | French |
es | Spanish |
pt | Portuguese |
de | German |
it | Italian |
ja | Japanese |
ar | Arabic |
id | Indonesian |
tr | Turkish |
nl | Dutch |
vi | Vietnamese |
ko | Korean |
pl | Polish |
he | Hebrew |
sv | Swedish |
Choosing the language
In order of priority: data-lang on the field or tool element, then data-lang on the script tag, then your page’s <html lang>, then English.
HTML
<html lang="fr"> <!-- French by default -->
<div data-pdfkind-tool="merge-pdf" data-lang="ar"></div> <!-- this tool in Arabic -->Last updated November 3, 2026 · Questions: contact@pdfkind.com