Why does a normal PDF-to-Word converter give me an empty document?

Because a scanned PDF contains no text at all — only a picture of text. Standard converters extract the text layer, and a scan has none. OCR (optical character recognition) is required to read the letters out of the image, which is exactly what this tool does.

Does the OCR really run offline?

Yes. Morphix uses Tesseract.js, a WebAssembly build of the Tesseract OCR engine. The language model is fetched once, then all recognition happens on your CPU inside the browser tab. Your scan is never uploaded.

On a clean 300 DPI scan of printed text, accuracy is typically 95 to 99 percent. Accuracy drops on skewed phone photos, handwriting, faint fax copies and heavy background patterns. Picking the correct language gives a noticeable improvement.

Is there a page limit?

No hard limit, but OCR is CPU-heavy, so expect roughly 2 to 6 seconds per page. Long contracts are best split first with the Split PDF tool.

Can I use this for confidential documents?

That is the whole point. Cloud OCR services receive a full copy of your contract, medical record or ID scan. Here the file never leaves your device, so there is nothing to log, retain or breach.

Scanned PDF to Word with In-Browser OCR

Scanned PDF vs. digital PDF

A PDF exported from Word carries a real text layer, so converting it back is trivial. A PDF produced by a scanner, a fax gateway or a phone camera is a stack of images in a PDF wrapper — there is nothing to extract. Morphix checks each page first: if a usable text layer exists it is used directly, and only genuine image pages go through OCR. Mixed documents get the best of both.

Tips for better recognition

Scan at 300 DPI — below 200 DPI accuracy falls off a cliff.
Straighten the page; skew beyond a few degrees confuses line detection.
Pick the right language, especially for accented Czech, Polish or French text.
Grayscale scans beat colour photos of paper.
Handwriting is not supported — Tesseract targets printed type.

Scanned PDF vs. digital PDF

Tips for better recognition

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