(a9t9) Free OCR Software
open-source OCR software and web service to extract text from image files and PDF. The application is available as online OCR web app, OCR API, or simple to install Win...
What is (a9t9) Free OCR Software?
This fast and OCR software extracts text from image files and PDF items.
The application is available as web service (online OCR), or as open-source Windows store app. If you want to automate OCR, you can call the OCR API (Rest) from your own program or script.
You can open an image or PDF file. The OCR conversion is fast and has a very good conversion quality.
Note that there is an older version for the Windows Desktop. It is also open-source but the conversion quality is not as good as it uses the somewhat outdated Tesseract OCR engine. Better use the new OCR web app or the Windows 8/10 store app.
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Comments and Reviews
CategoryOffice & Productivity
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I was looking for a free tool to extract Portugese and Spanish text from some screenshots and images. This tool worked very well. It converted more text with less errors than the other tools.
I am smitten by this service. It recognized all of the text and the layout of this text almost without errors and quickly. This is THE OCR TOOL. Tesseract and programs based on it are not even close to this level. And in addition it can be used for free for small files! For big files there's a monthly fee of $60, which is big, but if you need it just once and desperate for quality, you can do what I did - split your file into pieces of small size, feed them to the service one by one, take the results and merge them back (for pdfs use the right merging tool which saves the text layer like pdf-tk). For best results use algorithm labeled 5, pdf with invisible text option and additional checkboxes for tables and stuff. They also have an API which I haven't tried. It implies that you can write a bash script or a normal program which will feed the pieces to the service automatically. I just don't know whether this API can be accessed for free, you need to check this.
Unfortunately, the maximum input file size is limited to 5 MB.
Referring to the online version, the open source app version, or the Windows app version?
Reply written ago
You are correct, my comment is relevant for the Online version only. Offline apps seem to have no such limits.
Reply written ago