Text recognition

Copy text from scanned PDFs and images – offline

A scanned PDF, a photographed page, a screenshot, an error message in a dialog box: select the area and the text is in your clipboard. Recognition runs on your machine — the document is never uploaded.

Text recognition is included from Pro

Windows 10 and later · No admin rights needed · No account

Text you can see but cannot touch

To a computer, a scanned document is an image. The text in it is not writing but a pattern of pixels. You cannot select it, you cannot search it, you cannot copy it.

The same goes for screenshots, for error messages whose wording cannot be copied out, and for photographed pages.

The alternative is retyping. Annoying for three lines, working hours for three pages.

How you get the text out

01
Press the hotkey

Ctrl + Alt + T starts text recognition from any application. The hotkey is freely assignable.

02
Drag an area

A frame over the part of the screen — across several monitors too, at any resolution.

03
Paste

The recognised text is in your clipboard straight away. Ctrl + V, carry on working.

Image preparation — the actual difference

Poor originals are the norm: scanned crooked, grey, too dark, noisy, low resolution. Celerando prepares the image before recognition starts — which is where tools that pass the image through unchanged fall down.

Three profiles

Screen for screenshots and code, Photo for photographed pages with uneven light, Scan for PDF pages and paper. Each profile enables exactly the stages that help that material.

Six stages individually

In manual mode you control scaling, greyscale, contrast, binarisation, sharpening and noise reduction yourself — including the thresholds.

Upscaling to 3×

Tiny type in screenshots is enlarged before recognition. Without that step every engine returns gibberish on small text.

Why the profile matters: binarisation helps a clean scan and destroys half the letters in a photo with shadows. Sharpening helps the photo and creates artefacts in a screenshot. Hence three presets instead of one “enhance” button.

14 languages, mixed in the same document too

Celerando recognises with Tesseract 5 (LSTM). Eight languages ship with the installation, six more you download in the settings when you need them:

Included right away

German, English, French, Spanish, Italian, Dutch, Polish, Portuguese.

Downloadable on demand

Danish, Swedish, Finnish, Norwegian, Greek, Russian — a model of a few megabytes per language.

Several at once

A German-English contract is recognised in one pass; the default selection is German + English.

  • German
  • English
  • French
  • Spanish
  • Italian
  • Dutch
  • Polish
  • Portuguese
  • Danish
  • Swedish
  • Finnish
  • Norwegian
  • Greek
  • Russian

The language models live in your user profile, not in the installation directory — so downloaded languages survive every app update.

What else comes with it

Screenshot editor

Every image screenshot lands in the editor: pen, marker, eraser, arrow, rectangle, text and colour picker.

Two hotkeys

Ctrl + Alt + S for the image screenshot, Ctrl + Alt + T for text recognition — both freely assignable.

Notification with preview

After each screenshot Windows shows the result with a preview and buttons to edit or copy.

The document stays with you

Online text recognition means uploading your document. With a scanned contract, a personnel file or a medical letter that is not a small thing.

Celerando recognises on your machine. Neither the image nor the recognised text leaves it. What the app contacts at all: the download of each additional language you select, the update check, and on the very first launch a single installation ping — a random installation ID, a truncated hash of the device fingerprint, and the app and Windows versions; no account, no name, no content. The IP address is not stored in plain text: a hash of it is deleted after 48 hours, while the approximate location derived from it (country, region, city) stays with the record for 24 months.

With the eight bundled languages, text recognition works without any connection at all — try it in flight mode.

Celerando, PowerToys and the Snipping Tool compared

Windows 11 now ships screen text recognition itself, and PowerToys has had it for longer. Both work locally — the difference is not privacy, it is what comes out on difficult originals.

CelerandoPowerToys Text ExtractorSnipping Tool
Where recognition happens On your PCOn your PCOn your PC
Image preparation Six stages, three profiles, upscaling——
Languages 14, several at onceWindows language packsWindows language packs
Multi-monitor Yes, across screens tooPer screenPer screen
Screenshot editor Pen, marker, arrow, text, picker—Yes
Price Part of Pro, €29.99 onceFreeIncluded in Windows 11

As of September 2026. For a clean screenshot the built-in tool does the job — with a crookedly scanned contract, a photo with shadows or tiny type, the preparation decides the result.

Included in Pro

Text recognition is part of Celerando Pro — €29.99 once. Together with the Personal Dictionary, the full QuickShare and extended dictation.

You can try the free version at your leisure first.

Frequently asked questions about text recognition

Does text recognition work offline?

Yes. With the eight bundled languages it needs no connection — the image and the recognised text stay on your machine. Only when you enable one of the six additional languages is its model downloaded once.

Which languages are recognised?

Fourteen: German, English, French, Spanish, Italian, Dutch, Polish and Portuguese are included right away; Danish, Swedish, Finnish, Norwegian, Greek and Russian are downloaded when you need them. Several languages can be active at once, so a German-English document is recognised in a single pass.

Does it work with badly scanned originals?

That is what the image preparation is for: scaling, greyscale, contrast, binarisation, sharpening and noise reduction, bundled into the Screen, Photo and Scan profiles. With very poor originals every recogniser hits its limits though — a page a human can barely decipher will not become clean text here either.

What can Celerando do that PowerToys or the Snipping Tool cannot?

The image preparation before recognition (three profiles, six individually controllable stages, upscaling to 3×), free language selection with several languages at once, and selection across monitors. For a clean screenshot in your system language the built-in tools are perfectly sufficient — the differences show up with scans, photos and small type.

Which engine is behind it?

Tesseract 5 with LSTM recognition, an established open-source project. The language models are the official Tesseract data; Celerando provides the image preparation, the area selection and the integration into Windows.

Does it work with several monitors?

Yes, across monitors too and at any resolution — a frame may cross the screen boundary.

Can I pull text out of a PDF without opening it?

Text recognition works on what is visible on screen, so the PDF has to be open — then you drag the frame across the page. For scanned PDFs that is exactly the route, because their text cannot be selected anyway.

Where are the language models stored?

In your Windows user profile under %LOCALAPPDATA%\Menterium\Celerando, not in the installation directory. That is deliberate: an app update replaces the installation directory, and a language downloaded there would vanish without a trace.

Which edition includes text recognition?

From Pro. The free version does not include it — but the Dashboard, voice input in your system language and QuickShare for text can be tried without a time limit.

Do I need admin rights?

No. Celerando installs into your user profile, and so do the language models.