Have a look at OCRvision. OCRvision is a searchable PDF software. It can convert any scanned documents in a folder to searchable PDF automatically. It supports multilingual OCR.It can be configured for both scanned PDF and image files then convert to searchable pdf
Disclaimer :- I am associated with OCRvision as a developer
PDF Password Recover Pro 4.0
PDF Password Recover 4.0 comes to provide you with the best solution of PDF password recovery, by bringing you the hands-free recovery, high privacy protection, ultimate speed-up, and three powerful PDF password recovery methods. Not only PDF open password but also owner password, which is used to set PDF document ...
You can do this using LEADTOOLS. (Disclaimer: I am an employee of the vendor of this library).
The following C++ code takes the name of any image file and saves the image into a PDF file. Subsequent calls to this function with different images will append the new images to the same file.
void AppendImageToPdf(TCHAR* pszInputImageName, TCHAR* pszOutputPDF)
ImageMagick CLI would be the easiest, you could trigger a shell execute from C++ using the OS C++ API, or maybe glib if you are on Linux.
Though there is also a C++ library for ImageMagick.
Finally I went for OCRmyPDF (https://github.com/jbarlow83/OCRmyPDF), which uses tesseract for the actual OCR part (https://github.com/tesseract-ocr/tesseract) - as I understand tesseract is a OCR tool that has been open-sourced by Google.
OCRmyPDF has great documentation, also works from the command line and has many language packs:
ocrmypdf -l eng ...
If this is an essential business function, I wouldn't trust a program to automatically display a changed file. Indeed, by displaying a file, the application might lock it so that it cannot subsequently be updated!
Better might be to display an alert on any changes to files in the folder(s), to let a user open and review the change, and then have the user ...
Black Ice Printer Drivers can add Header and Footer on the printed document to provide important background information and to make your document look more professional. The Header and Footer feature provides flexibility for better document management by adding User or Document specific information to the printed document such as User name, print date and ...