• From a file: Insert Image… (CmdInsertImage).
• From the clipboard: Image From Clipboard (CmdCreateAnnotImageFromClipboard).
• Move / resize: drag the image, or its corner handles, in Edit PDF mode.
• Replace an image already in the PDF: right-click it → Selected Image → Replace Image… or Edit Image in Another App.
• Save: Ctrl + Shift + S saves into the PDF; Ctrl + S saves to a new PDF.

Insert an image from a file #

1. Start Insert Image… in any of these ways:
   • Right-click the page where the image should go → Annotations → Create Under Cursor → Image From File…
   • Right-click the page → Document → Insert Image…
   • Ctrl + K, then Insert Image in Command Palette
2. Pick an image: PNG, JPEG, BMP, GIF, TIFF, WebP, HEIC or ICO.
3. The image is placed with its top-left corner where you right-clicked (from the Command Palette: at the mouse pointer). It keeps its natural size (96 DPI unless the file says otherwise).

Insert an image from the clipboard #

1. Copy an image in another program (for example Copy image in a web browser, or a screenshot).
2. Right-click the page where the image should go → Annotations → Create Under Cursor → Image From Clipboard, or Ctrl + K, then Create Image Annotation From Clipboard (placed at the mouse pointer).

Move and resize the image #

• Move: drag the image.
• Resize: click the image to select it, then drag a resize handle. The image keeps its proportions.
• Delete: select it and press Delete.
• Copy to another page or PDF: Ctrl + C, then Ctrl + V at the new spot. See Copy, cut and paste annotations.
• Undo: Ctrl + Z.

Save the PDF #

• Ctrl + Shift + S saves into the PDF (CmdSaveAnnotations).
• Ctrl + S saves to a new PDF (CmdSaveAnnotationsNewFile). It suggests <name> Copy.pdf.
• Or use the Save button at the end of the Edit PDF toolbar. Hover over it for Save changes to a new PDF and Discard changes.

Replace an image in the PDF #

• Replace Image… (CmdReplaceImage): pick an image file. It is drawn where the old image was, stretched to the same size.
• Edit Image in Another App (CmdEditImageExternally): the image opens in the app Windows edits PNG files with (Paint, unless you changed it). Every time you save in that app, the image in the PDF is replaced with your edit.

Add an image from the command line #

// Add an image stamp annotation to PDF pages.
// Info: Stamp an image on PDF pages.
// Arg: <INPUT> : Input PDF
// Arg:  : Image file, PNG or JPEG
// Arg: <OUTPUT> : New output PDF
// Arg: 1 : Pages: all, 2, 1,3-5, 4-N, odd or even (N is the last page)
// Arg: top-right : Position: top-left, top-right, bottom-left, bottom-right or center
// Usage: sumatrapdf-tool run stamp-image.js in.pdf image.png out.pdf [pages] [position]

// Settings, used when not given on the command line
var PAGES = "1";
var POSITION = "top-right";
var MARGIN = 36; // distance from the page edge, in points (72 = 1 inch)
var MAX_WIDTH = 1 / 3; // the largest image width, as a fraction of the page width

if (!scriptArgs[0] || !scriptArgs[1] || !scriptArgs[2]) {
  print("usage: sumatrapdf-tool run stamp-image.js in.pdf image.png out.pdf [pages] [position]");
  quit(1);
}
if (scriptArgs[3]) PAGES = scriptArgs[3];
if (scriptArgs[4]) POSITION = scriptArgs[4];

var doc = Document.openDocument(scriptArgs[0]);
var img = new Image(scriptArgs[1]);
var n = doc.countPages();

// turn "1,3-5,N" into [1, 3, 4, 5, n]
function parsePages(spec) {
  var pages = [];
  spec.split(",").forEach(function (part) {
    part = part.trim();
    if (part == "all") part = "1-N";
    if (part == "odd" || part == "even") {
      for (var p = part == "odd" ? 1 : 2; p <= n; p += 2) pages.push(p);
      return;
    }
    var r = part.replace(/N/g, n).split("-");
    for (var p = parseInt(r[0]); p <= parseInt(r[r.length - 1]); p++) pages.push(p);
  });
  return pages;
}

var done = {};
parsePages(PAGES).forEach(function (p) {
  if (p < 1 || p > n || done[p]) return;
  done[p] = true;
  var page = doc.loadPage(p - 1);

  // page as you see it: [left, top, right, bottom] in points
  var b = page.getBounds();
  var w = img.getWidth() / 2,
    h = img.getHeight() / 2;
  var maxW = (b[2] - b[0]) * MAX_WIDTH;
  if (w > maxW) {
    h = (h * maxW) / w;
    w = maxW;
  }

  var x = b[0] + MARGIN,
    y = b[1] + MARGIN;
  if (POSITION.indexOf("right") >= 0) x = b[2] - MARGIN - w;
  if (POSITION.indexOf("bottom") >= 0) y = b[3] - MARGIN - h;
  if (POSITION == "center") {
    x = (b[0] + b[2] - w) / 2;
    y = (b[1] + b[3] - h) / 2;
  }

  var annot = page.createAnnotation("Stamp");
  annot.setRect([x, y, x + w, y + h]);
  annot.setStampImage(img);
  annot.update();
});

doc.save(scriptArgs[2]);
print("Saved " + scriptArgs[2]);

sumatrapdf-tool run stamp-image.js invoice.pdf logo.png out.pdf

• pages: 1 (the default), all, 2,5-7, 4-N (N is the last page), odd or even
• position: top-right (the default), top-left, bottom-left, bottom-right or center

sumatrapdf-tool run stamp-image.js invoice.pdf logo.png out.pdf all bottom-right

Tips #

• Use a PNG with a transparent background for a signature, so only the ink covers the page.
• Scan or photograph your signature at a high resolution and scale it down on the page, so it stays sharp when printed.
• Put the image on the clipboard once and use Image From Clipboard on every page that needs it.
• Flatten the PDF before sending it if the image shouldn’t be moved or removed.

See also #

• Sign a PDF: a digital signature, which can also show your signature image
• Fill a PDF form
• Editing annotations: other annotations, Edit PDF mode, saving
• Flatten PDF forms and annotations