Translate your entire English PDF into Welsh in minutes with BookTranslator. Upload a PDF, DOCX, EPUB, or scanned file and get a Welsh version with the original layout preserved and terminology kept consistent.
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Type text on the left, then click Translate.
834M+ words translated for 25,000+ happy readers from universities, publishers, and research communities
Save hours of manual work translating English PDFs and documents to Welsh. Whether it's a contract, a research paper, a government form, or a full-length publication, BookTranslator takes you from complex file to a readable Welsh version with less manual work.
1. Upload your English PDF
Upload the full English file (PDF, DOCX, or EPUB) and choose Welsh as the target language.
2. Let BookTranslator handle the English to Welsh translation
BookTranslator works across the whole document, keeping names, terms, context, and layout consistent in Welsh.
3. Download a readable Welsh version
Download a Welsh or bilingual copy of your document, with its layout intact and ready to read or share.
Made for full documents, not text snippets. Upload a PDF once and get a complete Welsh file back.
Our AI reads each English passage in full, capturing tone, nuance, and intent, so every section flows as naturally in Welsh as it does in the original. Never word-by-word.
BookTranslator tracks every name, place, and key term across your English document and applies them consistently in Welsh with a built-in glossary, so terminology stays accurate from the first page to the last in contracts, manuals, and papers alike.
Tables, images, footnotes, and formatting stay exactly where they belong. Your translated PDF or DOCX looks just like the English original, with zero cleanup.
Built-in OCR reads text straight off scanned English documents and image-only PDFs, then translates it cleanly into Welsh, so even old scans and photographed pages become readable.
Read the English original and the Welsh translation side by side to check accuracy, study either language, or verify important passages. Download a bilingual version anytime.
Entire English documents translated to Welsh in minutes, not days. Upload a 400-page PDF and start reading in Welsh before your coffee cools.
Different English files need different review paths. Pick the task closest to your Welsh translation job.
Researchers
Use BookTranslator when the English source is long, technical, or locked inside a scan. It keeps structure visible while making Welsh terminology easier to review.
Real reviews from readers who translated their books with BookTranslator.
The translation is indeed very well done, staying very close to the technical terms used, without compromising the understanding of the text. It maintains the layout and arrangement of the text. Reliable. Excellent quality.sergioBrazilRated 5 out of 5 on TrustpilotThis app has been a game-changer for translating books. The translations are accurate and preserve the tone and meaning of the original text really well, which is hard to find in most translation tools. It handles longer texts smoothly without losing context, and the output reads naturally rather than feeling robotic or overly literal.MohamediNetherlandsRated 5 out of 5 on TrustpilotI really love using this translation software. The translations are very natural and accurate, and errors are extremely rare. It is easy to use, reliable, and the results are consistently high quality.Hasko DoraGermanyRated 5 out of 5 on TrustpilotWhenever I had issue with the translation - formating, etc., the support of BookTranslator.app helped me within hours.Tereza VojtíškováCzechiaRated 5 out of 5 on TrustpilotI translate from multiple languages and multiple file formats, the program never fails to deliver.Antonia HallBulgariaThe translation is indeed very well done, staying very close to the technical terms used, without compromising the understanding of the text. It maintains the layout and arrangement of the text. Reliable. Excellent quality.sergioBrazilRated 5 out of 5 on TrustpilotThis app has been a game-changer for translating books. The translations are accurate and preserve the tone and meaning of the original text really well, which is hard to find in most translation tools. It handles longer texts smoothly without losing context, and the output reads naturally rather than feeling robotic or overly literal.MohamediNetherlandsRated 5 out of 5 on TrustpilotI really love using this translation software. The translations are very natural and accurate, and errors are extremely rare. It is easy to use, reliable, and the results are consistently high quality.Hasko DoraGermanyRated 5 out of 5 on TrustpilotWhenever I had issue with the translation - formating, etc., the support of BookTranslator.app helped me within hours.Tereza VojtíškováCzechiaRated 5 out of 5 on TrustpilotI translate from multiple languages and multiple file formats, the program never fails to deliver.Antonia HallBulgariaThe translation is indeed very well done, staying very close to the technical terms used, without compromising the understanding of the text. It maintains the layout and arrangement of the text. Reliable. Excellent quality.sergioBrazilRated 5 out of 5 on TrustpilotThis app has been a game-changer for translating books. The translations are accurate and preserve the tone and meaning of the original text really well, which is hard to find in most translation tools. It handles longer texts smoothly without losing context, and the output reads naturally rather than feeling robotic or overly literal.MohamediNetherlandsRated 5 out of 5 on TrustpilotI really love using this translation software. The translations are very natural and accurate, and errors are extremely rare. It is easy to use, reliable, and the results are consistently high quality.Hasko DoraGermanyRated 5 out of 5 on TrustpilotWhenever I had issue with the translation - formating, etc., the support of BookTranslator.app helped me within hours.Tereza VojtíškováCzechiaRated 5 out of 5 on TrustpilotI translate from multiple languages and multiple file formats, the program never fails to deliver.Antonia HallBulgariaExcellent platform with great value for money and outstanding translation, including the use of Portuguese expressions to make the content easier to understand.MateusBrazilRated 5 out of 5 on TrustpilotThe translation of cranium novel English to Bangla was so perfect. Glad to use this website.Jobaida KhanomBangladeshRated 5 out of 5 on TrustpilotIt was easy to use and only took minutes:)Catherine SiennaUnited StatesRated 5 out of 5 on TrustpilotQuick as the wind. And cheap.David MarinUnited StatesRated 4 out of 5 on TrustpilotEasy to use, quick responds thru email.CK UENAustraliaExcellent platform with great value for money and outstanding translation, including the use of Portuguese expressions to make the content easier to understand.MateusBrazilRated 5 out of 5 on TrustpilotThe translation of cranium novel English to Bangla was so perfect. Glad to use this website.Jobaida KhanomBangladeshRated 5 out of 5 on TrustpilotIt was easy to use and only took minutes:)Catherine SiennaUnited StatesRated 5 out of 5 on TrustpilotQuick as the wind. And cheap.David MarinUnited StatesRated 4 out of 5 on TrustpilotEasy to use, quick responds thru email.CK UENAustraliaExcellent platform with great value for money and outstanding translation, including the use of Portuguese expressions to make the content easier to understand.MateusBrazilRated 5 out of 5 on TrustpilotThe translation of cranium novel English to Bangla was so perfect. Glad to use this website.Jobaida KhanomBangladeshRated 5 out of 5 on TrustpilotIt was easy to use and only took minutes:)Catherine SiennaUnited StatesRated 5 out of 5 on TrustpilotQuick as the wind. And cheap.David MarinUnited StatesRated 4 out of 5 on TrustpilotEasy to use, quick responds thru email.CK UENAustraliaExplore 11 translator types for documents, images, text, websites, audio, subtitles, and manga.
Translate PDFs, DOCX files, and other documents with AI from 140+ source languages to Welsh. Click a source language to start.