Merge layers, lock forms, and prevent editing.
Makes PDF Un-editable (Read Only)
Flattening a PDF means converting all interactive elements such as form fields, annotations, layers, signatures, and comments into a single static layer. Once flattened, the PDF becomes read-only and cannot be edited easily.
GKPTool’s Flatten PDF tool allows you to lock your document permanently without installing software or uploading files to any server.
Many PDFs contain editable elements that can be modified unintentionally. Flattening prevents such changes and ensures document integrity.
After flattening, all form fields and layers are merged into the background. Text becomes non-editable and the PDF behaves like a scanned document.
This ensures the document appears identical on all devices and software.
Government forms and online applications often require users to fill details inside editable PDF fields. After submission, these fields should be locked.
Flattening merges the entered values permanently into the document so no one can alter them later.
PDFs may contain multiple layers including drawings, highlights, stamps, and comments. Flattening combines all these layers into a single page image.
Flattening converts pages into image-based content. This makes text selection, copy-paste, and unauthorized editing extremely difficult.
You can choose resolution levels suitable for web use or printing. High DPI settings maintain sharp text and clear images even after flattening.
All PDF flattening is done locally inside your browser. Files are never uploaded to external servers.
Your documents remain completely private and secure.
Flattening converts editable content into a single uneditable layer.
No. After flattening, the document becomes read-only.
No. You can choose high-quality resolution for printing.
No. All processing happens locally in your browser.
Yes, it is completely free with unlimited usage.