Related by context. Frequent words. (Click for all words.) 62 watermarks 61 Watermarking 60 watermarking 56 Portable Document Format PDF 54 Adobe PDF files 54 prevent unauthorized copying 54 biometric identifier 54 Apple FairPlay 53 EDLs 53 digital watermarking 52 Adobe Portable Document 52 Malicious code 52 encryptions 52 Optical Character Recognition OCR 52 iframes 52 SWF files 51 watermarked 51 anticounterfeiting 51 EXIF data 51 machine readable 51 exe files 51 VP7 51 watermark 51 MPEG Surround 50 metadata 50 XCP software 50 Deep Zoom 50 steganography 50 jpg files 50 Auditude 49 PhotoDNA 49 editable text 49 halftone 49 GeoPDF 49 TIFF files 49 Adobe Acrobat PDF 49 encryption 49 Protection HDCP 49 HTML Hypertext Markup Language 49 captchas 49 encrypted passwords 49 m4a 49 DTCP IP 49 Visioneer OneTouch 48 Digital Signatures 48 retina scans 48 alleged infringers 48 lossy compression 48 authentication encryption 48 barcodes 48 printer encoders 48 ASN.1 48 multispectral imaging 48 microdots 48 rewriteable 48 magstripe 48 TrustedFlash 48 encoding 48 AETs 48 Adobe PDF 48 digital 47 2D barcode 47 buffer overflow vulnerabilities 47 UDID 47 encryption decryption 47 ZIP files 47 specially formatted 47 cryptographically 47 malware variants 47 FairUse4WM 47 Audible Magic 47 Transport Layer 47 searchable PDF 47 TPMs 47 XML Extensible Markup Language 47 fingerprint scans 47 socket layer 47 Civolution 47 fingerprint biometric 47 PlayReady 47 PDF Portable Document 47 unauthorized copying 47 holograms 47 microdot 47 compression algorithm 47 lossless compression 47 writeable 47 RFID inlay 47 GnuPG 47 flatbed scanners 46 ID3 tags 46 cryptographic keys 46 unique identifiers 46 Hushmail 46 Kofax VRS 46 JPEG files 46 tamper proof 46 SPIM 46 SOAP messages 46 LiveUpdate 46 superlens