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AI & Agents

PDFidelity

Last updated 2026-09-13 · benchmark measured 2026-11-14 — deterministic & reproducible

PDF translation service that preserves academic document formatting and structure.

PDFidelity at a glance

PDFidelity is a PDF translation service that lets students and researchers translate academic papers, journals, and theses into another language while keeping the original layout, tables, citations, and equations intact.

Good for

  • Graduate students doing literature reviews
  • Researchers reading papers outside their native language
  • Journal clubs that need quick comprehension of a paper

Pricing

Free tier: 15 pages. Read $3.99/mo (200 pages), Study $7.99/mo (750 pages), Research $14.99/mo (1500 pages).

Questions people ask

What does PDFidelity do?
It translates research PDFs into the reader's language while preserving two-column layouts, tables, citations, and equations, producing a dual PDF with original and translated text side by side.

Does it work with scanned or image-only PDFs?
No, it is best suited for text-based PDFs from publishers; scanned or image-only PDFs are not ideal, and it is not meant for marketing or artistic layouts or certified legal translations.

Can I compare the original and translated text?
Yes, you can download bilingual PDFs or switch between languages to check meanings and cite accurately.

What file size and page limits apply?
It supports PDFs up to 100 MB; each translation is limited to 50 pages on the Read and Study plans and 100 pages on the Research plan, though longer documents let you choose which pages to process.

What happens to my uploaded files?
All PDFs are automatically deleted within 5 days of upload, even if you have an active plan.

Written by Legit.Show from pdfidelity.com on 2026-11-11. It does not change the score.

76/100
7/7 frames
Top 67% of 19,078 measured · #9 of 9 in document translation tool
Legit Benchmark — the simple average of 7 measured frames. Frames we could not measure are left out of the average, never counted as zero. Every frame is shown below with its evidence.
Checked 2026-11-14 · scores move as sites change

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To cite this score: legit.show/s/pdfidelity-com/2026-11-14. That address never changes; this page moves with every re-measure.

Legit.Show scored PDFidelity 76/100 on 2026-11-14, measured across all 7 frames from its public surface. legit.show/s/pdfidelity-com/2026-11-14

Is PDFidelity production-ready?

Legit.Show scores PDFidelity 76 out of 100 — the simple average of its 7 measured frames. Legit.Show ran its deterministic 7-Frame production-readiness benchmark on PDFidelity (public-surface assessment), measured from the public surface with no LLM in the scoring path. Its strongest frame is Standards; its weakest is Security. Every frame it averages is published with its evidence on the Legit.Show listing.

The 7 Frames

What we measured

Who it's for

Graduate students · Researchers · Medical professionals · Journal clubs · Academic professionals

Pricing

Free tier with 15 pages; Read plan $3.99/month (200 pages); Study plan $7.99/month (750 pages); Research plan $14.99/month (1500 pages)

Apps

Sources and updates

Description
Taken from pdfidelity.com's own website on 2026-09-13.
Operator
PDFidelity, as named in pdfidelity.com's terms, privacy page or footer.
Benchmark
Measured by Legit.Show from the live site, the way any visitor sees it — with no access to its code or accounts. Same method for every product, and no AI decides the score. Last checked 2026-11-14.

Put together from public information, without PDFidelity's involvement. If anything here is wrong, tell us and a person will check it.

Visit PDFidelity → · Alternatives to PDFidelity → · How this was measured →

See how PDFidelity ranks among tested document translation tool products →

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