这个程序使用Tesseract OCR识别图片里的字符生成可以搜索文本内容的pdf当然也可以复制pdf里的文本或者执行其他pdf操作。输入图片程序运行后会生成pdf这里演示生成的pdf可以选中和复制输入phototest.tif输出my_first_tesseract_pdf.pdf代码#include leptonica/allheaders.h #include tesseract/baseapi.h #include tesseract/renderer.h int main() { const char* input_image /usr/src/tesseract-oc/testing/phototest.tif; const char* output_base my_first_tesseract_pdf; const char* datapath /Projects/OCR/tesseract/tessdata; int timeout_ms 5000; const char* retry_config nullptr; bool textonly false; int jpg_quality 92; tesseract::TessBaseAPI *api new tesseract::TessBaseAPI(); if (api-Init(datapath, eng)) { fprintf(stderr, Could not initialize tesseract.\n); exit(1); } tesseract::TessPDFRenderer *renderer new tesseract::TessPDFRenderer( output_base, api-GetDatapath(), textonly, jpg_quality); bool succeed api-ProcessPages(input_image, retry_config, timeout_ms, renderer); if (!succeed) { fprintf(stderr, Error during processing.\n); return EXIT_FAILURE; } api-End(); delete api; return EXIT_SUCCESS; }