Security researchers at Ruhr University Bochum and Westphalia Wilhelm University in Germany announced that they have discovered an attack technique that can steal encrypted PDF content without a ...

Researchers have developed a new technique that allows attackers to extract contents of a password-protected or encrypted PDF file under special conditions. In a paper — titled “Practical Decryption ...

Small businesses working with sensitive PDF documents may choose to encrypt those documents. An encrypted PDF is password protected, which means you cannot open the document unless you type in the ...

The big picture: PDF encryption, as you can imagine, is commonly used in the world of business to protect trade secrets, confidential images and even health records. Some even send e-mail messages as ...

According to Jiri Sejtko, the trick allows the creators of malicious PDF files to slide them past almost all AV scanners. Anyone, he says, can create valid PDF files where the data uses – for example ...

However, I've encountered a recurring issue: "Error reading metadata from encrypted PDF". This error appears regardless of the PDF file I use, and I haven't been able to find a reliable workaround.

Upload a PDF file Encrypt it using AES-256-CBC Store the encrypted file on Arweave via Bundlr Mint an NFT on the Polygon blockchain with metadata pointing to the Arweave-hosted file # Blockchain ...