How to extract text from a scanned PDF.

A PDF can look like a normal document while containing no editable text at all. This usually happens when each page is a scanned image. You can read the words with your eyes, but the computer only sees pixels until optical character recognition, or OCR, identifies the letters and converts them into text.

First check whether the PDF already contains text

Try selecting a sentence in your PDF viewer. If you can highlight individual words and copy them, the document probably contains embedded text. If dragging across the page only selects a large image or nothing at all, the page is probably scanned and OCR will be required.

This distinction matters because extracting existing text is usually faster and more accurate than OCR. It also gives a converter more information about the position and size of words.

Use PDF to Word when you need editable output

The SizeFix PDF to Word converter first looks for embedded text. It reconstructs lines and paragraphs from the text positions in the PDF rather than simply joining every word on a page into one long sentence. If the document contains no meaningful embedded text, the tool falls back to OCR.

Why OCR is never perfectly identical to the original

OCR recognises characters from an image, so its accuracy depends on the scan. Clear black text on a white background usually performs well. Blurred photos, shadows, skewed pages, handwriting, decorative fonts and low-resolution scans are harder. Similar characters such as 0 and O, 1 and l, or punctuation marks may occasionally be confused.

Formatting is another challenge. A PDF is essentially a visual layout, while Word is a flowing document format. Tables, text boxes, multi-column pages and forms can require manual adjustment even when the words themselves are recognised correctly.

Improve OCR results before conversion

Use the clearest source you have. If you can rescan the document, place it flat, avoid shadows, keep the camera parallel to the page and use enough resolution for small text to remain sharp. Crop away unnecessary background around the paper. Rotating a sideways or skewed scan before OCR can also improve recognition.

If the PDF is extremely large because every page is a high-resolution photograph, you may want to create a readable compressed copy first. Avoid aggressive compression before OCR, however, because blurry text reduces recognition accuracy.

Review the Word document after conversion

Open the downloaded DOCX and check names, dates, numbers, headings and tables. For important records, compare the converted document against the original PDF before editing or submitting it. OCR should be treated as a productivity tool, not as a guarantee that every character has been reproduced perfectly.

What if you only need images instead of editable text?

If your goal is simply to extract each page as a JPG or PNG, use the PDF to image converter. OCR is only necessary when you need the words themselves to become searchable or editable.

The practical rule is simple: use direct text extraction when the PDF already contains text, use OCR for scanned pages, and always review complex layouts after conversion.