The following are some ways we could translate color image into grayscale(black and white image) in PDF file.
- Use the greyen filter under the image editor mode
- Use the Convert to sGray feature in Content panel
- Use the Print as Grayscale feature in print dialog box
Use the greyen filter under the image editor mode (available in Business edition only)
1:Open PDF file with Foxit PhantomPDF Business and switch to the page where the image object is located, click on Edit tab>Edit Object,and select Image option under the Edit Image drop-down list , double click on an image object which color need to be converted to grayscale, then you could find the Image tab appears on the ribbon which means that you have already entered into image editor mode.
2:Please select Greyen this filter in the Filter group under Image tab to add the grayen filter effect to image.
3:Click Apply Changes button to save the changes and exit the Image Editor.
Note:The image editor is available in Business edition of Foxit PhantomPDF only.
Use the Convert to sGray feature in Content panel (available in Business edition only)
1: Open PDF file in Foxit PhantomPDF Business,open the Content panel in the right navigation pane where you can view pages and objects there.
2: Navigate to the page where the image object is located in the content panel, click plus sign (+) before the destination page there to expand it to view all of its objects. Please find the image object that need to be converted into grayscale there, right click on the image object and select Properties option in the pop-up context menu to bring up the Object Properties dialog box.
3:Click on Color tab in the Object Properties dialog box,please select sGray for Convert To this option ,hit Convert Colors button,click on Close to close the Object Properties dialog box.
Note:The Content panel is available in Business edition of Foxit PhantomPDF only.
Use the Print as Grayscale feature in print dialog box (Available in both of Standard and Business editions)
1:Open PDF file with Foxit PhantomPDF ,click on File tab>Print to open the Foxit PhantomPDF Print dialog box.
2:Please select Foxit PhantomPDF Printer as printer and check Print as Grayscale option,then check options Fit to printer margins and choose paper source by PDF page size ,click on OK button to start printing the opened color PDF file into a new PDF file in grayscale.
Note:This method is for converting a color PDF to grayscale, so you will find that all of the colors in the current PDF file are translated into grayscale in newly created PDF file.