AsposeCropEPS

AsposeCropEPS function

Crops EPS file. It saves initial EPS file with updated existing %%BoundingBox or new one will be created.

function AsposeCropEPS(
    fileBlob,
    fileName, 
    fileNameResult, 
    left,
    top,
    right,
    bottom
)

Parameter	Type	Description
fileBlob	Blob object	Content of source file.
fileName	string	Source file name.
fileNameResult	string	Result file name.
left	float	Specifies left bound of crop box.
top	float	Specifies top bound of crop box.
right	float	Specifies right bound of crop box.
bottom	float	Specifies bottom bound of crop box.

Return Value

JSON object

Field	Description
errorCode	code error (0 no error)
errorText	text error ("" no error)
fileNameResult	result file name

Examples

  var fCropEPS = function (e) {
    const file_reader = new FileReader();
    file_reader.onload = (event) => {
      const json = AsposeCropEPS(event.target.result, e.target.files[0].name,  e.target.files[0].name + "_crop.eps", 30, 5, 240, 36);
      if (json.errorCode == 0) {
          DownloadFile(json.fileNameResult, "image/eps");
      }
      else 
        document.getElementById('output').textContent = json.errorText;
    }
    file_reader.readAsArrayBuffer(e.target.files[0]);
  }

Web Worker example:

  /*Create Web Worker*/
  const AsposePageWebWorker = new Worker("AsposePageforJS.js");
  AsposePageWebWorker.onerror = evt => console.log(`Error from Web Worker: ${evt.message}`);
  AsposePageWebWorker.onmessage = evt => document.getElementById('output').textContent = 
    (evt.data == 'ready') ? 'library loaded!' :
      (evt.data.json.errorCode == 0) ? `Result:\n${DownloadFile(evt.data.json.fileNameResult, "application/image", evt.data.params[0])}` : `Error: ${evt.data.json.errorText}`;

  /*Event handler*/
  const fCropEps = e => {
    const file_reader = new FileReader();
    file_reader.onload = event => {
      AsposePageWebWorker.postMessage({ "operation": 'AsposeCropEPS', "params": [event.target.result, e.target.files[0].name, 30, 5, 240, 36] }, [event.target.result]);
    };
    file_reader.readAsArrayBuffer(e.target.files[0]);
  };

  /*Make a link to download the result file*/
  const DownloadFile = function (filename, mime, content) {
      mime = mime || "application/octet-stream";
      var link = document.createElement("a"); 
      link.href = URL.createObjectURL(new Blob([content], {type: mime}));
      link.download = filename;
      link.textContent = filename;
      link.title = "Click here to download the file";
      document.getElementById('fileDownload').appendChild(link);
      document.getElementById('fileDownload').appendChild(document.createElement("br"));
  }

See Also

• function AsposeResizeEps