PrismKitCrypto & SecurityPDF Signature CheckerPDF Signature CheckerRuns in your browserLocalCopy linkMarkdownInspect the digital signatures embedded in a PDF and check whether the file changed after it was signed.Certificate DecoderDecode a PEM certificate or CSR to see its subject, issuer, validity, names, key and fingerprints.Certificate Format ConverterConvert certificates between PEM and DER, unpack PKCS#7 (.p7b) and PKCS#12 (.p12/.pfx) files, and build a .p12 from a certificate and key.