| Purpose | Resolution | Color space | Compression | Margins | |---------|-----------|-------------|-------------|---------| | CAD drawing | 300 DPI | Monochrome | CCITT G4 | None (full bleed) | | Poster/photo | 150–200 DPI | CMYK | JPEG2000 lossless | 3 mm | | Archiving | 300 DPI | PDF/X-1a | ZIP + JPEG | 5 mm |
If you clarify which A1 PDF tool or use case you meant, I can give you step-by-step screenshots-equivalent text. optimal a1 pdf
