All combinations

PDF + Video Polyglot

Combine a PDF document with an MP4 video file

PDFVideo

01 · Add your files

0/2 added
01PDF File
.pdf · 50MB
02Video File
.mp4 · 100MB

02 · Generate

Please upload both files to generate your polyglot file

Limits · PDF 50MB · Video 100MB

How to open your polyglot file
  • To access different file types, simply rename the file extension (e.g. .zip, .mp4, .jpg, etc.).
  • If your computer can't open .zip files, try using the command line: unzip filename.zip
  • .mp4 files may not play in some video players, but work fine with popular ones like VLC or QuickTime Player.
  • These files are polyglots and may behave differently depending on the software used to open them.
File size limits
  • PDF50MB
  • Image25MB
  • Video100MB
  • ZIP100MB
  • HTML1MB

Highlighted formats apply to this combination. Limits are enforced in your browser, so an oversized file never leaves your machine.

Usage terms
  • Use it only for educational, research, or testing purposes.
  • Not use the output for malicious purposes, phishing, or exploiting vulnerabilities.
  • Take full responsibility for any consequences of using the generated files.

What is a PDF + Video polyglot?

A PDF + Video polyglot opens as a readable document in a PDF viewer and plays as video in a media player. The file is simultaneously a valid document and valid MP4 container.

How the formats coexist

MP4 files are built from a sequence of length-prefixed atoms, and readers skip atoms they do not recognise. Placing the PDF structure inside an ignored atom keeps the video valid while leaving the document intact.

Why people build these

  • Distributing a talk recording alongside its written transcript in a single file
  • Testing how content-inspection pipelines classify a file with two valid container formats
  • Demonstrating MP4 atom parsing behaviour in teaching material

Files are processed in memory and never stored. Generated polyglots are intended for educational, research and testing use. See privacy and terms.