Merge PDFs

Combine 2–20 PDF files into one new document.

Local processing boundary

Current workflows process document bytes in this browser. AO-PDF records only the selected tool, outcome, duration, and coarse browser/runtime information—never filenames or document-derived data.

Operating limits

220 files; 100 MiB per file; 250 MiB aggregate; 500 pages; 1,024 MiB estimated working-memory limit; 120-second timeout.

  • Encrypted PDFs are not supported.
  • Source metadata is not copied into the new merged document.

Select files to begin.