Flatten PDF

PDF flattening is the process of merging interactive components—such as form fields, checkbox inputs, radio buttons, and digital signature layers—as well as markup annotations like highlights, shapes, and comments, directly into the background rendering layer of the PDF. This turns the entire document into static page content that cannot be easily edited or modified by viewers.

In Vector mode, our tool specifically target interactive Acrobat Forms (AcroForms). It renders the values of text boxes, check states, and signatures directly onto the page canvas as native PDF vector elements. The key benefit is that the text remains fully searchable and selectable, and the file preserves its crystal-clear zoom quality while losing all active form interactivity.

In Rasterize mode, every page is rendered into a flat pixel-based image before being compiled back into a clean, new PDF document. This completely flattens all forms, custom annotations, notes, stamps, and overlay drawings. It represents the ultimate level of security for document distribution because all text and metadata are completely destroyed, leaving only static pixels.

When utilizing the Rasterize mode, you can customize the rendering resolution to control the trade-off between quality and size. Choose Low (100 DPI) for fast downloads and smaller files, Medium (150 DPI) for standard web reading, or High (300 DPI) to match commercial printing standards and keep text looking sharp under close inspection.

Securing Digital Signatures: Signed PDFs that contain active image overlays or text field signatures can easily have those elements selected, extracted, or duplicated in vector editors. Flattening permanently fuses the signature into the background layout, making it extremely difficult for third parties to hijack or copy signatures for unauthorized use on other contracts.