If this tool helped you, you can buy us a coffee ☕
Remove digital signatures from PDFs while keeping the original content intact. Ideal for document editing and privacy protection.
Upload PDF File
PDF (Supported formats: .pdf)
Max 2.5 MB
Upload files and configure options, then click start processing
PDF N-up Tool
Smartly arrange multiple PDF pages onto a single sheet to optimize printing and reading efficiency.
Remove Pages from PDF
Accurately delete specific pages from PDF documents. Supports both single page and page range operations.
Split PDF
Extract specific pages or page ranges from a PDF to create a new, independent document.
Resize & Scale PDF Pages Online
Precisely adjust the display scale of specific pages in a PDF document to optimize reading or printing.
PDF N-up Tool
Smartly arrange multiple PDF pages onto a single sheet to optimize printing and reading efficiency.
Remove Pages from PDF
Accurately delete specific pages from PDF documents. Supports both single page and page range operations.
Split PDF
Extract specific pages or page ranges from a PDF to create a new, independent document.
Resize & Scale PDF Pages Online
Precisely adjust the display scale of specific pages in a PDF document to optimize reading or printing.
Remove Blank Pages from PDF
Accurately identify and remove blank pages from PDFs to optimize document structure and reduce file size.
PDF digital signatures are commonly used to verify document authenticity and integrity. However, when you need to edit a signed PDF or if the signature certificate has expired, removing the signature becomes necessary. This tool parses the PDF structure to accurately locate and delete the metadata blocks associated with the digital signature. It outputs a PDF file with its original content intact but stripped of all signature validation information. Digital signatures are an electronic identity authentication mechanism based on Public Key Infrastructure (PKI).
Q: Will the content change after removing the digital signature from the PDF?
No. The tool only removes the digital certificate metadata. All original content, including text and images, remains exactly as it was.
Q: What types of PDF signatures does the tool support?
It only supports digital certificate signatures that comply with PDF standards. It does not support image-based handwritten signatures or non-standard signature formats.
Please back up your original file before processing, as signature removal is irreversible. There are usually file size limits, and extremely large files may fail to process. Do not upload illegal or highly sensitive documents, although the server will immediately delete the file upon completion.
Digital signatures contain metadata such as the issuer, serial number, and timestamp. Once removed, the document will lose its integrity validation, making this tool ideal for scenarios where a document needs to be re-edited or re-signed. Typical use case: Input a signed "contract.pdf" and output a fully editable "contract_unsigned.pdf" with identical content.
