Inverting an image is literally inverting all of the colours. Black becomes white and vice versa. It's a common effect, but it can be somewhat disorienting. On a side note, inverting text can often make it unreadable as coloured ink has the tendency to bleed out (or in the case of knockout text, bleed in). Inverting a PDF is done the same way that inverting an image would be.
- Skill level:
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Things you need
- Adobe Photoshop
Open Photoshop. This can be done by double-clicking the icon.
Open the PDF you want to invert by navigating to "File" and "Open" and selecting your file in the dialogue that appears.
Invert the PDF by clicking "Image," "Adjustments" and "Invert."
Open GIMP by double-clicking on its icon.
Open the PDF by navigating to "File" and "Open" and selecting the file in the dialogue that appears.
Invert the PDF by clicking "Colors" and "Invert."
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