You can use PitStop Pro to solve the font loss problem:
(1) Select the "selec Object" tool;
(2) Select the Window command and then select Show Pit Stop Inspector
(3) Select the "Text" tab
(4) Click the "Font Picker" button
(5) Select the "Pages" tab. This will show the fonts used for a particular page. The "Documents" tab will show the fonts used for the entire file. The "System" tab will show the fonts installed by the system.
(6) Use the "System" tab to display the system-activated fonts, select the font you want to embed in the PDF, and then select the "Embed Font" check box
(7) Click "OK" to embed the font.
5. Color separation
Color processing during printing separation has always been a difficult problem, especially in software that does not support CMYK four-color, spot colors and RGB files must be converted to the corresponding CMYK file.
If you use typography software for color separation, the color separation procedure should be used for the best color separation. Acrobat takes a step further in processing colors. Not only can it accomplish color conversion in the Advanced Print Setup dialog box, but it can also soft-dye colors through the monitor before printing. The steps are as follows:
(1). Select “Advanced†and then “Separation Previewâ€. The separation preview dialog will show the colors contained in the file. If the file contains a spot color, the color is displayed along with the CMYK color.
(2). When the cursor moves on the page, the ink percentage at the cursor position will appear on the information bar. At this time, you can select a specific color to modify and view the color mixture, which is very helpful for the four-color printing with a two-color printing machine.
6. Wrong color space
Another frequently encountered PDF file problem in printing applications is the conversion of images and text in CMYK mode into PDF files in the RGB color space. In PitStop Pro, to solve RGB image problems, the process is as follows:
(1) Find the "selec Objects" tool
(2) Select "Window" and select "Show Pit Stop Inspector"
(3) Select the "Color" tab
(4) Click the "Change into CMYK" button at the bottom of the dialog
In PitStop Pro, the process for solving RGB problems is as follows:
(1) Use the "Secec Objects" tool to select some or all of the RGB text
(2) Select "Window" and select "Show Pit Stop Inspector"
(3) Select the "Color" tab to confirm the text color space
(4) Select "Window" and select "Show PitStop Global Change"
(5) Find the "Object" tab and select the "Color" tab
(6) Select the "RGB Range" button in the left column and specify the color gamut if required
(7) Click the "CMYK Range" button in the right column to describe the color to which the RGB text is converted.
(8) In the lower left corner of the "Overall Conversion" dialog box, indicate whether the conversion should be applied to the current page, a group of pages, or the entire file.
(9) Click Apply.