What is PDF OCR?


2022-08-04 11:05

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What is OCR?

What is the method of text recognizing technology(OCR)? Some friends who often look for information will find that some websites do not paste the text. If you want to paste text, you have to scan the code to pay, which is too troublesome and a waste of money. In fact, by taking screenshots, you can just crawl down the required text. This technology is called OCR text recognition technology. High text recognition, bid farewell to the trouble of typing word by word. Today I share software to teach you to convert pictures into text without spending a penny. This software is called AmindPDF, which can not only convert PDF format but also have some special functions, such as extracting pictures and text as mentioned above. 

How to use the OCR of AmindPDF?

AmindPDF OCR is available for PC and all mobile terminals.

-Firstly, you need to download the AmindPDF app for your equipment and open the PDF file that you wanna copy any text

-Then, click the “Tool” button, check the “Text recognize” and choose the text part that you want to text recognition, choose the determined language you gonna to recognize,  then click the “ok” button.

-After analyzing the text of the PDF, you will get the text editable. Then you could copy the part of the text you want.

Except for AmindPDF OCR, there are also some excellent PDF editors on the market,

For Mac: Readiris Pro 17 is an optical recognition OCR software specially developed and designed for Mac users, which can scan paper, PDF files, and image files into editable text. readiris pro mac has a multi-document processing function, which scans multiple documents and identifies them together, stores them as Word documents, and retains the original layout for convenient secondary processing.

For PC: ShareX

ShareX is a completely free and open-source tool.

Strictly speaking, ShareX is not a pure OCR tool. On the contrary, it is more appropriate to call it a screenshot tool. I mentioned ShareX when I introduced the screenshot tool in the previous article. However, I would like to introduce this tool again as an OCR tool, because it is also significantly better than most tools in terms of OCR capabilities.

ShareX has the following advantages,

-Completely free


ShareX is a composite tool that takes screenshots as the starting point and can select a series of continuous actions. You can choose to upload after screenshot, save after screenshot, add watermark after screenshot, or scan QR code after screenshot. Of course, you can also choose text recognition after screenshots, so that it becomes an OCR tool.

Tips for editing scanned PDFs with OCR:

-Test setup different pages and apply OCR to see how it works before scanning the entire stack of documents. Set up OCR for best results.

-High-quality scans provide the best OCR results. As a rule of thumb, make sure you scan documents between 300 and 600 dpi for the best OCR results.

-Insufficient contrast can cause OCR to fail to recognize text in the original document overlaid with too bright or too dark graphics. If this problem occurs, adjust the contrast to ensure that the OCR function can read the text.

-Use the black and white setting for best results.

-To avoid "confused" OCR with distorted text, make sure the source file is lying flat on the scanner.

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