What to Expect from OCR Software
If you are interested in free OCR software for Windows, then you must be aware of some of the finer points regarding its use. This would reduce frustration when sometimes the OCR process did not produce the results that you had in mind. Usually, such problems can be resolved by adjusting the different ratios. Refer to the user manual of the free OCR software for Windows that you are using to get specific ratios to obtain the best results. Free OCR software for Windows operates well with higher DPI rates. The higher the "dot per inch" percentage, the better the scanning output (though, you might end up with a larger file). But, that's just how OCR works.
The Importance of Texture Patterns
Texture patterns are important for free OCR software for Windows because they delineate which regions or areas of the document are considered the background and which isn't. Free OCR software for Windows usually has problems with documents that have yet to be de-screened. Therefore, you can do your OCR software a favor by performing the said operation prior to adding the OCR layer. During procedures like compression the background of the document and foreground of the document would be considered as two separate layers; the separation would not be 100% perfect so the free OCR software for Windows must compensate. Tessellation elements can help in restoring blank spots during compression.
Notes on Readability
To gain insight on the issue of what's readable and what's not readable for free OCR software for Windows, we go to technologies used by many websites to stave off bots. When you are asked to reconstruct the words or numbers on a particular `spam test', you are actually solving a problem. If you are correct, then you have shown the capacity for human reading and image recognition even if the image is not perfect. Therein lays the `nature' of free OCR software for Windows. If letters or numbers fail to delineate themselves as separate units, the machine cannot readily recognize them. Free OCR software for Windows therefore has to work extra-hard to recognize human handwriting and blurred documents during compression, etc.