How do I improve the accuracy of text recognition on my scanned invoices?

Scan invoices at 300 dpi (dots per inch) for the best quality. Make sure to choose the correct language for the text before starting the OCR process. Ensure the scanned image is clear and not blurry for better results.

What is the difference between a scanned invoice with OCR and one without?

Feature Scanned Invoice with OCR Scanned Invoice without OCR. Searchability Text is searchable, allowing you to find words and phrases. Text is part of an image, so you cannot search for words. Copy/Paste You can select and copy text from the document. You cannot select or copy text directly; it's an image. File Type Often a PDF with a hidden text layer. Typically an image file (JPEG, TIFF) or a PDF of an image. Use Case Ideal for data extraction, indexing, and long-term storage. Good for simple viewing, but limited for data management.

Inconsistent Invoice Scanning in Adobe Acrobat — How-to & AI prompts

AI prompts

1 way to ask · copy any one

DBecome — “help me grow”Across the last [N=30] vendor invoices I handled, where do I consistently lose time or cause…+

Across the last [N=30] vendor invoices I handled, where do I consistently lose time or cause confusion when making and filing three copies? Show the pattern in mistakes (naming, version control, stamping), recommend one habit change that would stop those errors for good, and give the exact filename convention I should use so accounting and archives never argue over which copy is which.

when the reply comes backPush once: ask it to sharpen the weakest part, and to say what it assumed.

How to do it

the tool · the steps · what to avoid

1
Open your scanned PDF in Adobe Acrobat.
2
Go to All tools and select Scan & OCR.
3
From the left panel, select Enhance Scans.
4
Adjust the image borders if needed by dragging the blue handles to tightly frame the document content.
5
Use the available enhancement options to deskew, adjust contrast, and remove background as needed for clarity.
Best practiceImproving contrast and removing background noise before OCR can significantly increase text recognition accuracy, especially for faded or uneven scans.
6
Click Apply to save the image enhancements.
7
Return to the Scan & OCR pane and select Recognize Text.
8
Choose In This File to run OCR on the current document.
9
Click Recognize Text to start the OCR process.
NoteIf the document was previously OCR'd, Acrobat may prompt to re-recognize text; confirm to proceed if needed.
10
Save the enhanced, OCR-processed PDF.

In the appWith the API

Enhancing the image before running OCR helps Acrobat recognize text more accurately in poor-quality scans.

This runs in the Acrobat app - there is no separate API for this task.

Glossary

words on this page

OCROCR stands for Optical Character Recognition. It is technology that turns images of text into real text you can search and copy.ExampleAfter scanning a paper invoice, OCR allows you to copy the vendor's name from the image.

DPIDPI means dots per inch, and it tells you how clear an image is when it is scanned.ExampleA scanned photo saved at 300 DPI will usually contain more detail than the same photo at 72 DPI.

Renderable TextRenderable text is text that a computer can already read and select, not just a picture of text.ExampleYou can easily copy and paste text from a PDF because it contains renderable text.

The real tasks

the one, listed here

Too often my files end up duplicated or missing because I’ve never standardised how I scan and label multi‑copy invoices.

FAQ

about this task

Scan invoices at 300 dpi (dots per inch) for the best quality.
Make sure to choose the correct language for the text before starting the OCR process.
Ensure the scanned image is clear and not blurry for better results.

This message means that the page you are trying to process already has actual text that Acrobat can read, not just an image. The OCR feature is designed to work only on pages that are pure images. If you see this error, it means the text is already searchable, so you do not need to run OCR.

Recognizing text in scanned invoices makes them searchable. This means you can quickly find specific information like invoice numbers, dates, or vendor names without reading the whole document. It also helps with archiving and indexing, making it easier to organize and retrieve your financial records efficiently.

Yes, if you have many scanned invoices, you can automate the text recognition process. Adobe offers a PDF Services API with an 'OCR PDF' operation. This allows you to programmatically convert image text in your invoices into a searchable layer. This is very useful for large batches of documents, helping with archiving and indexing at scale.

Feature	Scanned Invoice with OCR	Scanned Invoice without OCR
Searchability	Text is searchable, allowing you to find words and phrases.	Text is part of an image, so you cannot search for words.
Copy/Paste	You can select and copy text from the document.	You cannot select or copy text directly; it's an image.
File Type	Often a PDF with a hidden text layer.	Typically an image file (JPEG, TIFF) or a PDF of an image.
Use Case	Ideal for data extraction, indexing, and long-term storage.	Good for simple viewing, but limited for data management.

Inconsistent Invoice Scanning

When to use it

AI prompts

How to do it

Glossary

The real tasks

Who does this

FAQ

Sources

Adobe help

When it fails