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  • How to Translate Scanned PDF Online and Offline | Full Guide

How to Translate Scanned PDF Online and Offline | Full Guide

  • By Lena
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  • Updated on July 16, 2025
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Introduction:
A scanned PDF is not editable, so you can't select and translate the text as usual. Fortunately, you can utilize a professional scanned PDF translator or online services to accomplish the task. Read this guide to learn more about how to translate scanned PDF to English or other languages.
summary

⭐️⭐️ Quick Start

➡️ A professional PDF translator like SwifDoo PDF can make things a breeze! It supports Quick Translation, Document Translation, and AI Translation. You can translate the entire document in one click or first convert the PDF to an editable PDF, then use its translation tool to translate the text. Click the download button below to get the tool and start translating.

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➡️ Want to translate a PDF online? Google Docs or online translation services can help. However, the latter usually requires a fee.

You can keep reading for detailed steps.

Part 1. How to Translate Scanned PDF Offline

SwifDoo PDF is a feature-rich PDF tool that enables users to view, edit, annotate, convert, and translate PDFs, among other functions. Whether you want to translate a word, a sentence, a paragraph, or the entire document, it's no problem. It supports over 100 languages, enabling you to easily convert scanned PDFs from languages such as French, German, Spanish, Hindi, and Arabic to English.

Next, I’ll show you how to use SwifDoo PDF to translate scanned PDF to English or any other language.

Option 1. OCR PDF and Translate Selected Text

You've discovered you can't copy text from scanned PDFs, right? Therefore, to translate a scanned PDF, you can first convert it to an editable document using Optical Character Recognition (OCR) technology.

The SwifDoo PDF OCR tool can accurately recognize the text in scanned PDFs, even those with complex formatting. Click the button below to download the SwifDoo PDF and start conversion.

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Step 1. Convert Scanned PDF for Translation

1. Run SwifDoo PDF and click Open to select the scanned PDF.

Open PDF

2. Click Edit from the menu bar and select OCR.

OCR

3. Select the document language and adjust other settings > Click Apply to confirm.

OCR Settings

After waiting a while, you will get an editable and searchable document.

OCR Complete

Step 2. Translated PDF via Two Methods

After converting the scanned PDF to a text-based document, it is ready for translation. Read on to learn how to translate scanned PDFs.

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AI Translation

SwifDoo has one built-in AI Chatbot powered by ChatGPT 4.0. With SwifDoo AI, you can easily translate, summarize, rewrite, proofread, and analyze PDFs without effort. It supports translating 25 popular languages, including English, Spanish, French, German, Italian, and Japanese.

1. Go to the PDF you just converted > Select the text you want to translate.

2. Click the AI icon on the mini toolbar and choose Translate. Select the target language to start. 

AI Translate

3. It will display the result on the SwifDoo AI box.

SwifDoo AI Box

AI Translate PDF: Master PDF Translation with AI Technology

AI Translate PDF: Master PDF Translation with AI Technology

Click on this page to learn how to translate PDFs with AI technology. We will introduce you to 5 popular translation tools and show you detailed instructions.

READ MORE >

Quick Translation

Quick Translation can help when you need to translate text of up to 400 characters. It can directly translate selected text into the target language.

1. Select the text you need to translate.

2. Choose Quick Translation.

3. Adjust the source and the target language.

Quick Translation

Option 2. Translate the Entire File Quickly

Try Document Translation if you need to translate an entire PDF, multiple pages, or a single page.

1. In SwifDoo PDF, choose the Document Translation option.

2. Adjust the language > Select the page range and output path.

3. Finally, click Translate to XXX to start. Due to its advanced technology, it can help you translate PDFs without losing formatting.

Document Translation

As you can see, SwifDoo PDF helps you quickly translate PDFs without needing to copy the text to a translator. Take the chance to get the free trial!

Part 2. How to Translate Scanned PDF Online

You may have tried translating a scanned PDF using Google Translate but failed. No worries! You can use Google Docs or Doctranslator to help you translate PDFs online.

Translate Scanned PDF Online via Google Docs

You can first upload the scanned PDF to Google Drive and use Google Docs to translate the file. After the translation, you can save the file as a PDF or a Word.

1. Open your browser and go to Google Drive (https://drive.google.com/drive/my-drive).

2. Click the + New button to upload the scanned PDF.

3. Open the PDF with Google Docs.

Open with Google Docs

4. On the new tab, click Tools > Translate document.

Translate Document

5. Select the target language and click Translate to start.

Translate with Google Docs

6. The translated document will open on a new page. Click File > Download and select the format to save the document.

Translate Scanned PDF Online with DocTranslator

DocTranslator is one online translation tool that supports translating scanned PDFs. It is known for supporting a wide range of languages. However, it will charge you based on the word count - about $0.007 a word. If that sounds good, please follow the steps below.

1. In your browser, go to https://doctranslator.com/translate-scanned-document/ > Click SIGN UP FREE to create an account.

DocTranslator Site

2. Upload the scanned PDF and adjust the language.

Upload Load Scanned PDF

3. Confirm the fee and click Translate to pay.

FAQs

Q: Why can’t I translate a scanned PDF?

The text in a scanned PDF is not selectable. You should first convert the file into a text-based PDF.

Q: How can I translate a scanned PDF for free?

You can use Google Docs to translate a scanned PDF for free. Additionally, SwifDoo PDF offers a 7-day free trial that allows you to experience all its features, including translation.

Q: How to translate a scanned PDF in Google Translate?

Google Translate can’t translate a scanned PDF. You can convert the PDF to an image or Word document and then let Google Translate translate the document.

Conclusion

That’s all about how to translate a scanned PDF. If you prefer high accuracy, SwifDoo PDF is the best choice. It will detect all the text in the PDF and help you translate the selected text or the entire document. After that, you can continue editing the PDF to improve it further. Download and give it a try!  

Lena has been in the editing industry for 8 years. She is familiar with a variety of products that can make things easier, such as PDF tools, video recording software, iOS location changer, etc. She enjoys sharing her knowledge with users to help them solve problems in their work and life. In her spare time, she likes to play with her cat.

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