Hello,
If I'm given a PDF with color i.e., graphs, charts, etc, how can I make the PDF black and white?
Thanks
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This can be done easily, please download and install docPrint Pro v6.0 application first,
https://www.verypdf.com/app/document-converter/try-and-buy.html
https://www.verypdf.com/artprint/docprint_pro_setup.exe
after you installed docPrint Pro v6.0, please open your PDF file in Adobe Reader and by following steps to convert your color PDF file to black and white PDF file,
1. Go to File,
2. Select Print,
3. Change printer to docPrint PDF Driver,
4. Go to the properties tab,
5. Find the button to click to change it to Black/white, and click it,
6. Print the document - it will ask for a file name, so give it something different from the original or you will overwrite the original,
7. Open the new document if it doesn't open automatically,
OK, you will get a black and white PDF file by above steps.
The following PDF file was created at color mode,
The following PDF file was created at black and white mode,
See Also:
If you want convert a color PDF file to B/W PDF file, you can also download “Image to PDF OCR Converter Command Line” from following web page to try,
http://www.verypdf.com/app/image-to-pdf-ocr-converter/try-and-buy.html#buy-ocr-cmd
http://www.verypdf.com/tif2pdf/image2pdf_cmd_ocr_trial.zip
after you download it, you can run following command lines to convert a color PDF file to B/W PDF file easily,
//Convert color PDF file to B&W PDF file using halftone technology
img2pdfnew.exe _test-color.pdf _test-BW1.pdf
//Convert color PDF file to B&W PDF file without using halftone technology
img2pdfnew.exe -bitcount 8 -threshold 180 _test-color.pdf _test-BW2.pdf
img2pdfnew.exe does render all PDF pages to whole color images first, and then convert them to black and white PDF file, it will handle all objects in PDF pages automatically.