Extract text from Digital signatures (SIGNATURE)
To convert SIGNATURE Signatures to another format, you need Apple Xcode or other Encoded software.
To convert other file formats to the "Detached Digital Signature" file type, you need software like Apple Xcode or a similar tool.
The .SIGNATURE file extension is primarily used for detached digital signatures. These files authenticate the identity of a sender or verify that a paired file has not been altered in transit. Common uses include Apple code signing (using the PKCS#7 / CMS standard) via Apple Xcode and XML-based e-Filing digital signatures for the India Income Tax Department. You can manage or validate these files using developer tools or specific government utility portals.
Working with .SIGNATURE files presents significant challenges. They are highly specific cryptographic files and are practically useless without the corresponding data file they are meant to sign. Because they are often proprietary or use strict binary formats (like PKCS#7), standard text editors cannot open them. Trying to read a binary signature will display garbled text. Furthermore, government e-Filing signatures require exact, unmodified validation through official portals; altering a single byte destroys the file's integrity.
While you cannot convert a digital signature into a readable document like a PDF, users often need to extract the underlying certificate data into PEM or DER formats to inspect public keys, or extract raw XML data from tax returns.
This file format is difficult to open or convert because cryptographic signatures rely on complex encoding (like ASN.1) and strict validation protocols. Often, only the original cryptographic software or government portal can properly read or validate the data. However, just drag and drop your file to identify the format, view it, and convert it when possible on convert.guru. We can inspect the file, show embedded text or certificates, and if our analysis detects a supported underlying format like XML, viewing or conversion may still be possible.
Convert.Guru analyzes your SIGNATURE file, detects the exact format, and lets you read the text inside.
Users also converted JPEG, JPG, PKPASS, JSON, PNG, PDF, DOCX, JFIF, ZIP, BIN, PLIST, STRINGS and NIB files.
If you want to convert SIGNATURE file to PNG, HTML, JPG or BLACK, you can use Apple Xcode or similar software from the "Digital Signature Authentication" category. In the File menu, look for Save As… or Export….
To convert files to SIGNATURE, try Apple Xcode or another comparable tool in the "Digital Signature Authentication" category.
The history of Convert.Guru began over 25 years ago in California with Tom Simondi’s file-format database. A former contributor to Space Shuttle development and a software pioneer of the 1980s, Simondi established a trusted resource for file type analysis that was even referenced by Microsoft Windows XP. Today, we use modern technology to process and convert thousands of file formats while continually improving our SIGNATURE converter.