How to Fix PDF Images Printing as Gray Boxes or Missing
Question details
The user is trying to print a PDF document, but the images inside the file either fail to print entirely or print out as solid gray boxes instead of the actual pictures.

- Product
- Device & OS
- not provided
- Scenario
- Printing a PDF document, such as a knitting pattern, that contains embedded images and complex visual elements.
- Observed behavior
- The text prints normally, but certain images are completely missing from the printed page, while others appear as blank gray boxes.
Before altering advanced print settings, try printing a different PDF that contains images to determine if the issue is isolated to a single corrupted file or affects your printer globally.
Use the 'Print as Image' Feature
Printing the PDF as an image forces the printer to bypass complex font and transparency processing, which is the most common cause of gray box errors.
When a PDF contains overlapping images, transparencies, or unsupported color encodings, standard printing methods may fail to translate the data to the printer. The 'Print as Image' option rasterizes the entire page into a single picture before sending it to the printer.
Open your problematic PDF file in your desktop PDF reader and click on 'File' > 'Print', or press 'Ctrl + P' on your keyboard.
In the Print dialog box, locate and click the 'Advanced' button, usually found near the top or bottom of the window depending on your software.
Check the box next to 'Print as Image'. If prompted, select a resolution (e.g., 300 dpi) and click 'OK'.
Click 'Print' to send the document to your printer. Check the physical copy to ensure the images are now rendering correctly.

Update Printer Drivers and Check Compatibility
Outdated printer drivers can cause miscommunication between your PDF software and the printer hardware, leading to missing elements.
Recreate or Re-export the PDF File
If you are the author of the PDF or have access to the source file, re-saving it with standard image formats can fix embedded encoding errors.
Print Complex PDFs Flawlessly with WPS Office
Stop struggling with gray boxes and missing images. WPS Office provides a robust, built-in PDF reader designed to accurately render and print high-resolution images, complex graphics, and transparent elements exactly as they appear on your screen.
- 1. Open Your PDF: Launch WPS Office and open your problematic PDF file using the built-in PDF tool.
- 2. Access the Print Menu: Click the 'Print' icon on the top toolbar or press 'Ctrl + P'.
- 3. Adjust Print Settings: Review the print preview. If your document is highly complex, toggle the 'Print as Image' option within the WPS print dialog.
- 4. Print Successfully: Click 'Print' to send the accurately rendered document to your printer without missing any images.

Frequently Asked Questions
Why do images turn into black or gray boxes when printing a PDF?
This usually happens because the printer's memory is overwhelmed by complex document data, or the printer's driver cannot correctly interpret the image encoding or transparency layers present in the PDF file.
Can printing from a web browser cause missing images in a PDF?
Yes. Built-in PDF viewers in browsers like Chrome or Edge have limited rendering capabilities. It is highly recommended to download the PDF to your local drive and open it in a dedicated desktop application like WPS Office before printing.
How do I fix PDF printing issues on a Mac?
On a Mac, open the PDF in the native Preview app, click 'File' > 'Export', and save it as a new PDF file. Alternatively, you can export it directly as a high-resolution JPEG or PNG image, and print that resulting image file instead.
Does clearing the printer spooler fix missing images?
Sometimes. If previous print jobs are stuck in the queue and corrupting memory, restarting the 'Print Spooler' service in Windows can clear the pipeline and allow your PDF images to process and print normally.




