{
  "name": "PNG pixel dimensions for GoPDFConverter A4 and Letter PDF placement",
  "version": "2026-07-11-v105",
  "license": "CC BY 4.0",
  "canonical": "https://gopdfconverter.com/guides/png-to-pdf-without-losing-quality/",
  "formula": "minimum pixels = ceil(placed inches × target PPI)",
  "rounding": "Each dimension is rounded up independently to the next whole pixel.",
  "scope": "Portrait A4 and US Letter pages using the production converter page dimensions and 0, 10, 20, or 40 PDF-point margins per side.",
  "limitations": [
    "These dimensions describe the full available placement box. An image with a different aspect ratio is scaled to fit one dimension and will not fill both dimensions.",
    "PPI is a placement calculation, not a universal print-quality guarantee.",
    "Auto page size maps one source image pixel to one PDF point and is not included in this fixed-paper table."
  ],
  "rows": [
    {
      "page": "letter",
      "pageLabel": "US Letter",
      "orientation": "portrait",
      "pageWidthPt": 612,
      "pageHeightPt": 792,
      "marginPerSidePt": 0,
      "placedWidthIn": 8.5,
      "placedHeightIn": 11,
      "targetPpi": 150,
      "minimumWidthPx": 1275,
      "minimumHeightPx": 1650
    },
    {
      "page": "letter",
      "pageLabel": "US Letter",
      "orientation": "portrait",
      "pageWidthPt": 612,
      "pageHeightPt": 792,
      "marginPerSidePt": 0,
      "placedWidthIn": 8.5,
      "placedHeightIn": 11,
      "targetPpi": 200,
      "minimumWidthPx": 1700,
      "minimumHeightPx": 2200
    },
    {
      "page": "letter",
      "pageLabel": "US Letter",
      "orientation": "portrait",
      "pageWidthPt": 612,
      "pageHeightPt": 792,
      "marginPerSidePt": 0,
      "placedWidthIn": 8.5,
      "placedHeightIn": 11,
      "targetPpi": 300,
      "minimumWidthPx": 2550,
      "minimumHeightPx": 3300
    },
    {
      "page": "letter",
      "pageLabel": "US Letter",
      "orientation": "portrait",
      "pageWidthPt": 612,
      "pageHeightPt": 792,
      "marginPerSidePt": 10,
      "placedWidthIn": 8.2222,
      "placedHeightIn": 10.7222,
      "targetPpi": 150,
      "minimumWidthPx": 1234,
      "minimumHeightPx": 1609
    },
    {
      "page": "letter",
      "pageLabel": "US Letter",
      "orientation": "portrait",
      "pageWidthPt": 612,
      "pageHeightPt": 792,
      "marginPerSidePt": 10,
      "placedWidthIn": 8.2222,
      "placedHeightIn": 10.7222,
      "targetPpi": 200,
      "minimumWidthPx": 1645,
      "minimumHeightPx": 2145
    },
    {
      "page": "letter",
      "pageLabel": "US Letter",
      "orientation": "portrait",
      "pageWidthPt": 612,
      "pageHeightPt": 792,
      "marginPerSidePt": 10,
      "placedWidthIn": 8.2222,
      "placedHeightIn": 10.7222,
      "targetPpi": 300,
      "minimumWidthPx": 2467,
      "minimumHeightPx": 3217
    },
    {
      "page": "letter",
      "pageLabel": "US Letter",
      "orientation": "portrait",
      "pageWidthPt": 612,
      "pageHeightPt": 792,
      "marginPerSidePt": 20,
      "placedWidthIn": 7.9444,
      "placedHeightIn": 10.4444,
      "targetPpi": 150,
      "minimumWidthPx": 1192,
      "minimumHeightPx": 1567
    },
    {
      "page": "letter",
      "pageLabel": "US Letter",
      "orientation": "portrait",
      "pageWidthPt": 612,
      "pageHeightPt": 792,
      "marginPerSidePt": 20,
      "placedWidthIn": 7.9444,
      "placedHeightIn": 10.4444,
      "targetPpi": 200,
      "minimumWidthPx": 1589,
      "minimumHeightPx": 2089
    },
    {
      "page": "letter",
      "pageLabel": "US Letter",
      "orientation": "portrait",
      "pageWidthPt": 612,
      "pageHeightPt": 792,
      "marginPerSidePt": 20,
      "placedWidthIn": 7.9444,
      "placedHeightIn": 10.4444,
      "targetPpi": 300,
      "minimumWidthPx": 2384,
      "minimumHeightPx": 3134
    },
    {
      "page": "letter",
      "pageLabel": "US Letter",
      "orientation": "portrait",
      "pageWidthPt": 612,
      "pageHeightPt": 792,
      "marginPerSidePt": 40,
      "placedWidthIn": 7.3889,
      "placedHeightIn": 9.8889,
      "targetPpi": 150,
      "minimumWidthPx": 1109,
      "minimumHeightPx": 1484
    },
    {
      "page": "letter",
      "pageLabel": "US Letter",
      "orientation": "portrait",
      "pageWidthPt": 612,
      "pageHeightPt": 792,
      "marginPerSidePt": 40,
      "placedWidthIn": 7.3889,
      "placedHeightIn": 9.8889,
      "targetPpi": 200,
      "minimumWidthPx": 1478,
      "minimumHeightPx": 1978
    },
    {
      "page": "letter",
      "pageLabel": "US Letter",
      "orientation": "portrait",
      "pageWidthPt": 612,
      "pageHeightPt": 792,
      "marginPerSidePt": 40,
      "placedWidthIn": 7.3889,
      "placedHeightIn": 9.8889,
      "targetPpi": 300,
      "minimumWidthPx": 2217,
      "minimumHeightPx": 2967
    },
    {
      "page": "a4",
      "pageLabel": "A4",
      "orientation": "portrait",
      "pageWidthPt": 595.28,
      "pageHeightPt": 841.89,
      "marginPerSidePt": 0,
      "placedWidthIn": 8.2678,
      "placedHeightIn": 11.6929,
      "targetPpi": 150,
      "minimumWidthPx": 1241,
      "minimumHeightPx": 1754
    },
    {
      "page": "a4",
      "pageLabel": "A4",
      "orientation": "portrait",
      "pageWidthPt": 595.28,
      "pageHeightPt": 841.89,
      "marginPerSidePt": 0,
      "placedWidthIn": 8.2678,
      "placedHeightIn": 11.6929,
      "targetPpi": 200,
      "minimumWidthPx": 1654,
      "minimumHeightPx": 2339
    },
    {
      "page": "a4",
      "pageLabel": "A4",
      "orientation": "portrait",
      "pageWidthPt": 595.28,
      "pageHeightPt": 841.89,
      "marginPerSidePt": 0,
      "placedWidthIn": 8.2678,
      "placedHeightIn": 11.6929,
      "targetPpi": 300,
      "minimumWidthPx": 2481,
      "minimumHeightPx": 3508
    },
    {
      "page": "a4",
      "pageLabel": "A4",
      "orientation": "portrait",
      "pageWidthPt": 595.28,
      "pageHeightPt": 841.89,
      "marginPerSidePt": 10,
      "placedWidthIn": 7.99,
      "placedHeightIn": 11.4151,
      "targetPpi": 150,
      "minimumWidthPx": 1199,
      "minimumHeightPx": 1713
    },
    {
      "page": "a4",
      "pageLabel": "A4",
      "orientation": "portrait",
      "pageWidthPt": 595.28,
      "pageHeightPt": 841.89,
      "marginPerSidePt": 10,
      "placedWidthIn": 7.99,
      "placedHeightIn": 11.4151,
      "targetPpi": 200,
      "minimumWidthPx": 1598,
      "minimumHeightPx": 2284
    },
    {
      "page": "a4",
      "pageLabel": "A4",
      "orientation": "portrait",
      "pageWidthPt": 595.28,
      "pageHeightPt": 841.89,
      "marginPerSidePt": 10,
      "placedWidthIn": 7.99,
      "placedHeightIn": 11.4151,
      "targetPpi": 300,
      "minimumWidthPx": 2397,
      "minimumHeightPx": 3425
    },
    {
      "page": "a4",
      "pageLabel": "A4",
      "orientation": "portrait",
      "pageWidthPt": 595.28,
      "pageHeightPt": 841.89,
      "marginPerSidePt": 20,
      "placedWidthIn": 7.7122,
      "placedHeightIn": 11.1374,
      "targetPpi": 150,
      "minimumWidthPx": 1157,
      "minimumHeightPx": 1671
    },
    {
      "page": "a4",
      "pageLabel": "A4",
      "orientation": "portrait",
      "pageWidthPt": 595.28,
      "pageHeightPt": 841.89,
      "marginPerSidePt": 20,
      "placedWidthIn": 7.7122,
      "placedHeightIn": 11.1374,
      "targetPpi": 200,
      "minimumWidthPx": 1543,
      "minimumHeightPx": 2228
    },
    {
      "page": "a4",
      "pageLabel": "A4",
      "orientation": "portrait",
      "pageWidthPt": 595.28,
      "pageHeightPt": 841.89,
      "marginPerSidePt": 20,
      "placedWidthIn": 7.7122,
      "placedHeightIn": 11.1374,
      "targetPpi": 300,
      "minimumWidthPx": 2314,
      "minimumHeightPx": 3342
    },
    {
      "page": "a4",
      "pageLabel": "A4",
      "orientation": "portrait",
      "pageWidthPt": 595.28,
      "pageHeightPt": 841.89,
      "marginPerSidePt": 40,
      "placedWidthIn": 7.1567,
      "placedHeightIn": 10.5818,
      "targetPpi": 150,
      "minimumWidthPx": 1074,
      "minimumHeightPx": 1588
    },
    {
      "page": "a4",
      "pageLabel": "A4",
      "orientation": "portrait",
      "pageWidthPt": 595.28,
      "pageHeightPt": 841.89,
      "marginPerSidePt": 40,
      "placedWidthIn": 7.1567,
      "placedHeightIn": 10.5818,
      "targetPpi": 200,
      "minimumWidthPx": 1432,
      "minimumHeightPx": 2117
    },
    {
      "page": "a4",
      "pageLabel": "A4",
      "orientation": "portrait",
      "pageWidthPt": 595.28,
      "pageHeightPt": 841.89,
      "marginPerSidePt": 40,
      "placedWidthIn": 7.1567,
      "placedHeightIn": 10.5818,
      "targetPpi": 300,
      "minimumWidthPx": 2147,
      "minimumHeightPx": 3175
    }
  ]
}