Strip digital signatures, stamps, and certificate locks from PDF documents to make them editable again. Clear signature blocks to combine, edit, or modify files without permission errors. Combine signature removal with metadata cleaning, watermarking, and flattening simultaneously in a single session.
error folder with a detailed log.
ℹ️ The entire page text layer is removed to guarantee no sensitive content remains (image-only output).
⚠️ Note: If your PDF is an image or scanned document, text cannot be found. We recommend selecting "Rebuild & Repair PDF" alongside Redact for OCR, but this will increase processing time.
DocInspector clears cryptographic signature blocks, restoring file editability.
Digitally signed PDFs are often locked by certificates, preventing merging or text editing. DocInspector parses the PDF's internal catalog and safely strips the digital signature dictionary (AcroForm Signatures) to unlock the file.
Choose whether to remove the signature completely, or merge the signature's visual representation (handwritten images, stamp graphics) into the background layer using flattening.
Process large volumes of signed documents. Strip signature locks in bulk to combine files into bundle reports, sanitize metadata, or add fresh corporate watermarks.
Our online tool is built on the same isolation principles as the desktop app. Here is the exact data flow from your browser to the processed output.
Remove digital signatures from PDFs online. The tool parses signature objects and unlocks files for editing. Combine signature removal with metadata sanitization, flattening, or watermarking in one pipeline.
Yes, it removes the security locks enforced by Adobe Acrobat or other signing platforms, allowing page modification.
By default, the cryptographic validation is stripped. You can optionally flatten the PDF to lock the visual stamp image permanently into the page.
Unlock higher limits, batch processing of thousands of files, folder trees, multi-action pipelines and advanced reporting. Choose the plan that fits your workflow.