The best PDF translators in 2026
Maxim Enis · co-creator of Polytranslator · author of From LLM to NMT (125+ citations)Updated August 30, 2026
Four kinds of tools can translate a PDF in 2026, and the right one depends on your language and whether your PDF is real text or a scan. The honest comparison:
Polytranslator
Languages: 474 (only option for ancient/rare); Advanced tier for maximum accuracy
Whole-PDF upload: Yes (20MB free, 50MB Scholar)
Scanned/photographed PDFs: Yes — image translation handles photos of pages
Long-document consistency: Chunked with consistent terminology
Output: Your choice: clean text, or the same PDF with the layout preserved (scans included)
Price: Free tier; Pro $19.99/mo
Google Translate
Languages: ~250
Whole-PDF upload: Yes (10MB)
Scanned/photographed PDFs: Partially
Long-document consistency: Good
Output: Layout-preserving (variable quality)
Price: Free
DeepL
Languages: ~35
Whole-PDF upload: Yes (paid tiers for big files)
Scanned/photographed PDFs: No (text PDFs only)
Long-document consistency: Excellent on European languages
Output: Layout-preserving DOCX/PDF
Price: Free tier; Pro from ~$9/mo
AI chatbots
Languages: Major languages
Whole-PDF upload: No native pipeline; paste chunks
Scanned/photographed PDFs: Vision models, page by page
Long-document consistency: Context degrades after ~50 pages
Output: Chat text
Price: Chatbot subscription
The short version: if the translated PDF has to look like the original — columns, tables, stamps and signature blocks in place — Polytranslator with “keep formatting” does it page by page, scanned or digital, in 474 languages, with the credit cost shown before you translate; DeepL is a good alternative for its ~35 mostly European languages on text-based PDFs. For a quick free read of a major language, Google works. For rare or ancient languages, scanned pages, and manuscripts — a Latin parish register, a Sanskrit book, a medieval charter — Polytranslator is the only practical option: photograph or upload, and the whole document is translated with consistent terminology.
Related: document translator (DOCX, PPTX, XLSX, EPUB) · image translator · translating old family letters