How to Fix a PDF Printing Gray Instead of Black
Question details
The user needs to know why a specific PDF file prints text in gray instead of black, even after changing all relevant printer and software settings.
- Product
- Device & OS
- not provided
- Scenario
- Attempting to print a PDF document with dark or black text, but the physical printout renders the text in a lighter gray.
- Observed behavior
- The PDF prints gray text regardless of selecting black-and-white printing, adjusting contrast, or printing as an image. The issue is isolated to this specific file, as other documents print correctly.
Ensure your printer's black ink cartridge is not running low and print a test page from another application to confirm the hardware is functioning correctly.
Address Embedded Document Color Properties
Use this solution when printer settings fail, which indicates the gray color is hard-coded into the PDF's source text.
When standard settings like 'Print as Image' or 'Black and White' do not resolve the issue, the text in the PDF is likely formatted with a specific gray color profile rather than true black. Printers interpret gray formatting as grayscale, using halftone dots that keep the text looking gray.
Print a different PDF document containing standard black text. If it prints perfectly, you have confirmed the issue is specific to the original document's properties.
Contact the creator of the document and ask them to generate a true black-and-white version of the file.
If you have access to the original source file (such as a Word document), open it, select all the text, and change the font color to 'Automatic' or true black. Re-export the file as a PDF and try printing again.
Force Print as Image and Maximize Contrast
A fallback method to bypass the printer's default text rendering engine, which can sometimes produce darker results.
Easily Edit and Print PDFs in True Black with WPS Office
If your PDF text is embedded as gray, WPS Office allows you to directly edit the text color within the PDF or adjust advanced print settings to ensure crisp, true-black printouts.
- 1. Open the PDF: Launch WPS Office and open the PDF file that is printing in gray.
- 2. Enter Edit Mode: Navigate to the 'Edit' tab and click on 'Edit Text' to make the document text selectable.
- 3. Change text color: Highlight the gray text, open the font color palette in the toolbar, and select pure black.
- 4. Print the document: Go to 'Menu' > 'Print', review the preview to ensure the text is black, and click 'Print'.
Frequently Asked Questions
Why does changing my printer to 'Black and White' not fix the gray text?
When a printer is set to 'Black and White', it disables color ink but still translates lighter colors or gray text into grayscale. It uses fewer black ink dots to replicate the lighter shade, resulting in text that still appears gray.
Can low ink cause a PDF to print gray?
Yes. If your black ink cartridge is low, or if the printhead is clogged, black text may appear faded or gray. Always print a test page to rule out hardware or ink depletion issues.
How can I check if the issue is specific to one PDF file?
Open a different PDF file that you know contains standard black text and print it. If the second file prints perfectly in black, the issue lies in the embedded color properties of the original gray PDF.
