A watermark is a semi-transparent image that usually contains a logo or seal to identify who created a document or image. If you want to watermark a PDF file, you can either insert the watermark into ...

Japan's computer emergency response team (JPCERT) is sharing a new 'MalDoc in PDF' attack detected in July 2023 that bypasses detection by embedding malicious Word files into PDFs. The file sampled by ...

In a PDF document, there are essentially two ways to display text. One way is to embed the text, including its font information, in the document file. The other way is to display the text as an image, ...

Attackers using the Snake keylogger malware for Windows are emailing malicious PDFs with embedded Word documents to infect victims' PCs and steal information. Malicious PDFs are an unusual tool to use ...