Demo

PDF Translation Demo: Compare AI Models

Try the same sample with different AI models and target languages, then compare the translation and layout.

Upload my PDFTry a sample
  1. 1Select document
  2. 2Select language
  3. 3Select model

01

Demo · Select document

Choose a sample PDF file.

1 / 2

02

Select language

Source language

Source language

03

Select model

For international teams

Check the text and layout in a translated PDF

Use O.Translator to compare languages, AI models, and document layout before uploading your own file. PDFs can contain fixed pages, fonts, images, tables, and scanned text. Use the demo to compare the translation and page layout.

  1. 01

    Choose a sample document

    Choose a PDF, DOCX, PPTX, XLSX, or EPUB sample.

  2. 02

    Set the language and model

    Check the source language, then choose the target language and model.

  3. 03

    Check the result

    Open the preview and check the translation, structure, and layout.

Why use this demo

Compare models on the same document

Use one sample to see how each model handles the language and layout.

01

Compare AI models

Run the same sample through different AI models and compare the wording, tone, and terminology.

02

Check the target language

Choose a target language and check whether the translation reads naturally.

03

Compare the layout

Compare headings, tables, images, and spacing with the original document.

Compare before you upload

  • Start with a public sample instead of your own document.
  • Compare languages and models in the same demo.
  • Check the format limits before planning a final review.

What to check

What to check when translating PDF documents

Check the details that can change the translation, document structure, or layout.

01

Columns and paragraphs

Compare column order, paragraphs, and line breaks with the original PDF.

02

Tables and text placement

Check that translated text fits inside tables, labels, callouts, and other small areas.

03

Images and captions

Check that images, captions, and nearby text stay together.

04

Headers, footers, and page numbers

Check repeated headers, footers, and page numbers.

05

Fonts and special characters

Look for replaced fonts, missing characters, and incorrect punctuation.

06

Page balance

Check wrapping and spacing where the page contains a lot of text.

Things to review

What can affect a PDF translation

Complex files and important content may still need a careful final review.

  • 01Scan quality affects text recognition in image-based PDFs.
  • 02Dense tables, diagrams, and overlapping elements may require manual review.
  • 03Font availability can affect the appearance of translated text.
  • 04Contracts, academic papers, and other critical documents should receive a final human review.

Other demos

Try another translation demo

Choose another file format, or try a demo for a specific language pair.

Language pair

English PDF to Chinese

Translate an English PDF into Simplified Chinese.

Coming soon

Document format

DOCX translation demo

Choose a sample and preview the translation for this format.

View demo

Document format

PPTX translation demo

Choose a sample and preview the translation for this format.

View demo

Document format

XLSX translation demo

Choose a sample and preview the translation for this format.

View demo

Document format

EPUB translation demo

Choose a sample and preview the translation for this format.

View demo

Demo FAQ

Common questions about the PDF demo

What should I review in a scanned PDF translation?

Check the recognized text, reading order, punctuation, and text around images. A blurry or low-contrast scan may reduce accuracy.

Why can translated PDF pages look different from the source?

Translated text may be longer, and the original font may not be available. This can change line breaks, spacing, and page balance.

Why compare AI models with the same document?

Using one source makes differences in wording, tone, terminology, and layout easier to spot.

What can an international team learn from this demo?

Teams can compare readability, model results, and layout before starting a larger multilingual project.

Do I need to upload my own document to use this demo?

No. Start with a sample document, and upload your own file only when you are ready.

Is the preview generated from a real document translation?

Yes. The demo translates the selected sample and shows the original and translated previews.

Why can results vary between documents?

Document structure, scan quality, fonts, text length, and terminology can change the translation and layout.

Can I choose another language or translation model?

Yes. Choose a sample, then select a target language and one of the available models.

How do I translate my own document?

Select "Upload my document" to start a translation with your own file.

Your document

Ready to compare models on your own document?

Upload your document, choose a language and AI model, and compare the preview.

Upload and compare my document