Books & long documents

Technical Manual Translation

Translate a scanned equipment manual or parts catalog. Tables, part numbers and drawings stay on the page where a technician looks for them.

Upload a PDF 100% automatic · 5 pages free

Translating something else? Browse every document type — certificates, records, statements and transcripts.

Manuals travel with the machine, in the language of the factory that built it: a lathe from Japan, a pump from Germany, a packaging line from China. The people who need them are the technicians, buyers and maintenance crews who install it, service it and reorder its parts somewhere else. A manual is mostly structure: numbered steps, warning boxes, specification tables, exploded views keyed to a parts list. A translation that turns all that into running text loses the part you needed. Reglyph translates the scan page by page and sets the English back into the same layout.

Layout-preserving

When a manual has to be translated by law

In the EU, machinery has to come with instructions in the official language of the country where it's used, and when the manufacturer doesn't supply that translation, the importer has to provide one. From 20 January 2027 the new Machinery Regulation lets each member state set the language and allows digital instructions under conditions. These rules judge the result, not the method, and none of them certifies a tool's output: a translation that ships with a machine is the shipper's responsibility, so have the safety text checked against the original.

Who needs technical manuals translated

The situations people most often bring technical manuals to us for — each one keeps the original layout, seals and tables.

  • Operating and maintenance manuals for imported machinery
  • Parts catalogs and exploded views for ordering spares
  • Service bulletins and troubleshooting tables
  • Datasheets and specifications from overseas suppliers
  • Installation guides that arrive in only one language

How long are manuals?

Anything from a 20-page quick-start guide to service manuals and parts catalogs of several hundred pages. Each upload takes up to 50 pages and 100 MB, so split a long manual at chapter breaks and keep each parts list in the same part as the drawings it refers to. In recent jobs, a 40–50-page part came back in about 10 to 25 minutes.

What happens to each part of a manual page

Manual pages mix several kinds of content, and they aren't all handled the same way:

On the pageIn the translated PDF
Instructions, notes and warningsTranslated and set back in the same position. Numbered steps, "Note:" lines and list items keep their own lines.
Tables: specifications, torque values, maintenance intervalsEach cell is translated inside its own cell. Cells holding only a number or a code are left as they are.
Model codes, part numbers, reference numbersNot translated.
Labels and callout numbers inside drawingsLeft as they are, in the original language. Callout numbers still match the parts list.
Table of contentsEach entry keeps its own line and its page number.
Logos, stamps, handwritten notesKept as they are.

The drawing labels are the main gap. If the words on a diagram matter to you, such as a connector name or a valve position, read them off the original: the side-by-side download puts each original page next to its translation.

Before you upload

  • Scan at 300 dpi or more. Specification tables and footnotes are often set in small type, and the resolution is what keeps them readable.
  • Split anything over 50 pages at chapter breaks, and keep each parts list with the exploded views it belongs to.
  • Keep the original file. You'll want it next to the translation when you check values and part numbers.

What to check before anyone works from the translation

The mistakes machine translation makes in manuals cluster in a few places. Check these against the original:

  • Values and units: torque figures, pressures, clearances, fluid capacities. Unit symbols are symbols, not words, so N·m and MPa should read exactly as in the original.
  • Decimal commas: a German or French manual writes 12,5 where English writes 12.5. Figures in their own cells come through exactly as printed, so read them with the original's convention in mind.
  • Warnings: every DANGER, WARNING and CAUTION block should be complete, with nothing shortened.
  • Part names against the parts list: each page is translated on its own, so the same part can get two different English names in different chapters. There's no glossary upload.
  • Codes inside sentences: a part number inside a sentence is carried along with the sentence, so give those lines a glance.

If you convert units for your own use, keep the original figure next to the converted one. Conversion rounds the value, and the original is what the manufacturer specified.

EU rules in more detail

  • Machinery Directive 2006/42/EC, for machinery placed on the market before 20 January 2027: instructions in the official language or languages of the member state. Translations are marked "Translation of the original instructions" and supplied together with the original.
  • Who translates: the manufacturer, its authorised representative, or whoever brings the machine into that language area. The Commission's guide says an importer who can't get a translation from the manufacturer has to translate the instructions or have them translated.
  • Service manuals meant only for the manufacturer's own specialised staff may stay in one EU language those staff understand. Maintenance done by the user is not covered by that exception.
  • Parts lists are a matter of contract under the Directive, except the specification of safety-relevant spare parts, which belongs in the instructions.
  • Machinery Regulation (EU) 2023/1230, from 20 January 2027: a language users can easily understand, as set by each member state. Digital instructions are allowed if they can be printed, downloaded and saved and stay available for the machine's lifetime and at least 10 years; a buyer who asks at purchase gets paper free of charge.
  • Low-voltage equipment, consumer products under the General Product Safety Regulation (applied since 13 December 2024) and medical devices follow the same pattern: the member state decides the language.

Pictograms help: the Commission's guide notes that well-designed symbols can be understood without translating any text. Words printed on the machine itself still have to be in the local language.

Machine translation and the translation standards

None of these rules say how a translation has to be produced. The translation-industry standards draw their own line: ISO 17100 leaves raw machine output with post-editing outside its scope, while ISO 18587 sets requirements for full human post-editing of machine output. For a manual that will ship with a product, have a professional post-edit the translation and check the safety text against the original. For a manual you need to read, the translation and the original side by side are usually enough.

Technical Manual Translation — frequently asked

Can I translate a manual from Japanese, German or Chinese to English?

Yes. Upload the scanned PDF and choose the languages; tables, part numbers and drawings stay in place. Google Translate's document upload leaves text on scanned PDF pages untranslated, so a scan needs a tool that reads the page first.

Are part numbers and values changed?

Cells holding only a number or a code are left exactly as printed, and model codes and part numbers aren't translated. Where a value sits inside a sentence it's carried along with the translated words, so check those lines against the original.

Are the labels in drawings and exploded views translated?

No. Small labels inside drawings stay in the original language, and callout numbers keep matching the parts list. Read the labels you need off the original in the side-by-side download.

How long can the manual be?

Up to 50 pages and 100 MB per upload. Split longer manuals at chapter breaks and translate the parts one after another.

Do I need to translate my user manual for the EU?

For machinery, low-voltage equipment and consumer products, yes: the instructions must be in a language the member state accepts. Malta and Ireland accept English alone.

Can I use machine translation for a technical manual?

For reading a manual yourself, yes. For one that ships with a product, the EU rules judge the result rather than the method and certify no tool's output, so have a professional post-edit it and check the safety text against the original.

Does the parts catalog have to be translated?

Not under the EU Machinery Directive, which leaves parts lists to the contract. The specifications of safety-relevant spare parts are the exception: they belong in the instructions.

Can I upload a glossary so terms stay consistent?

No. Each page is translated on its own, so check that each part keeps the same English name throughout, especially across chapters.

Pricing

Choose your plan

Simple, scan-friendly pricing. Pages are pages — no multiplier for scanned files.

Pay-as-you-go

Translate a few pages. No commitment.

one-time
pages

$0.30 a page, from 10 pages — you pay for exactly 10 pages.

  • Pages never expire
  • Up to 100 MB per file
Buy 10 pages — $3

Lite

Most popular

For individuals with scans to translate every month.

$9/ month
  • $0.09 / page
  • 100 pages every month
  • 5 bonus pages, refreshed daily
  • Up to 100 MB per file
  • Pages reset each month
Subscribe

Pro

For high-volume users with scans to translate every week.

$29/ month
  • $0.06 / page
  • 500 pages every month
  • 5 bonus pages, refreshed daily
  • Unused pages roll over (up to 1,500)
  • Up to 100 MB per file
Subscribe

Other documents we translate

Medical recordsUpload scanned medical records and read them in English. Lab tables, dosages and dates stay in place.Bank statementsTranslate months of scanned bank statements to English. Every amount stays in its own row.Academic transcriptsTranslate a scanned transcript to English. Course names, credits and grades stay in their columns.Marriage certificatesUpload a scanned marriage certificate and get an English version laid out like the original, field for field.Birth certificatesTranslate a scanned birth certificate to English with every printed field where the original put it.PassportsTranslate the pages of a scanned passport to English. Printed fields stay in their grid; stamps and signatures stay exactly as they are.Driver's licensesTranslate a driver's license to English. Categories, dates and restrictions stay in their original fields.Diplomas & degreesTranslate a diploma to English while the certificate still looks like a certificate.Death certificatesTranslate a death certificate to English with registry fields and seals exactly where the original placed them.Divorce certificates & decreesTranslate a divorce certificate, or the full decree, to English in the original layout.Legal documentsTranslate scanned legal documents to English. Clause numbers, exhibits and signature blocks stay put.Immigration documentsTranslate the documents in an immigration file to English, each in its original layout.Books & manuscriptsTranslate a scanned book part by part. Chapter openings, footnotes and page numbers stay where the author put them.Certified translationsWhat a certified translation is, who can make one, and how it differs from sworn and notarized translations.