Verify and capture checks and endorsed signatures: scan each check front and back into editable PDF, run text recognit…
Open the scanned PDF file in Adobe Acrobat.
Go to the Tools menu.
Select Scan & OCR from the tools list.
Click Recognize Text and choose In This File.
In the settings panel, ensure PDF Output Style is set to Searchable Image.
Click Recognize to start the OCR process.
Save the PDF after OCR is complete.
Best practiceFor best OCR accuracy, scan your documents at 300 dpi and ensure the images are clear before running OCR.
After OCR completes, you can search, copy, and highlight text in your previously scanned PDF.
This runs in the Acrobat app - there is no separate API for this task.
Recognizing text in a scanned PDF means converting image-based text into actual, selectable text. This is important because it makes your scanned documents searchable and allows you to copy text from them. It helps with archiving and finding information quickly.
If your scanned check image is blurry, the text recognition (OCR) might not work well. OCR needs clear text to convert it accurately. For the best results, always scan documents at a high quality, like 300 dpi. If the scan is too blurry, the text might be recognized incorrectly or not at all, making it hard to search or copy.
It is important to select the correct language before recognizing text because OCR technology uses language-specific rules and dictionaries. If you choose the wrong language, the recognition process will make many mistakes. This will result in poor accuracy, and the text layer will not be useful for searching or copying.
| Feature | Image-Only PDF | Searchable PDF |
|---|---|---|
| Content Type | Just a picture of the document | Picture of the document with a hidden text layer |
| Searchable | No, you cannot search for words | Yes, you can search for words and copy text |
| Created By | Direct scan or photo | Image-only PDF processed with OCR |