Why can't patents in pdf be copied? What's the solution?

Huai Chloe Wang (in-station contact ta) scans the head patent. As far as I know, there is no way to copy it at present. . . Shamoyuji (contact TA in the station) sees the character recognition function? Can you lighten the burden and look at the character recognition function? Ps: I tried, and I can copy it. Translation:) yxqiang 1 19 (in-sTAtion contact TA) OCR recognition may solve some problems, but it may not be able to recognize all ~ ~ ~ ~ chenypzh (in-station contact ta). There is something wrong with the PDF version you are using. Look at nono2009 (contact TA in the station). Try this method. Install the professional version of the pdf (mine is professional version 8. 1), click the menu bar document, select OCR text recognition, and then click OCR text recognition R. If the PDF is protected, you need to find a cracking tool. Using OCR recognition may solve some problems. Can you upload the software to me and give it to me? I looked for it. There are several kinds, and there are Chinese versions. I really don't know which one is the one you said. Please help me. I'll give you more specific ocr recognition software for gold coins. I haven't used this ocr recognition software that I don't know very well. I'm not sure. I use the OCR function in adobe professional. Try this method. Install the professional version of the pdf (mine is professional version 8. 1), click the menu bar document, select OCR text recognition, and then click OCR text recognition R. If the PDF is protected, you need to find a cracking tool.