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How to Check DPI of a PDF File?

🔗 Video Link:    • How to Check DPI of a PDF File?  

Checking the DPI of a PDF file isn't as simple as checking a single image, as a PDF is a container for various elements like text, vector graphics, and raster images, each potentially at different resolutions. The "DPI" (dots per inch) primarily refers to the resolution of the raster images embedded within the PDF. The most reliable method to check this is using Adobe Acrobat Pro. Open the PDF, navigate to "Tools," then "Print Production," and select "Preflight." Within Preflight, you can run various checks, such as "List page objects" or "Analyze and fix," which will generate a detailed report showing the effective and actual DPI of all embedded images. For a specific image, use the "Object Inspector" tool (also in Print Production) to click on it and view its properties, including resolution. Alternatively, some online PDF analysis tools or command-line utilities like Ghostscript or ImageMagick can extract embedded images, allowing you to then inspect the resolution of those individual image files. This will give you insight into the quality of the raster content within your PDF.

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⚠️ Disclaimer: This video is for educational purposes only. It does not replace professional, medical, financial, or legal advice. Please consult qualified experts for specific concerns.


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