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1 lut 2017 · The following code snippet shows a possible approach to derive the new y position after adding a line or block of text (you may test it on https://parall.ax/products/jspdf): var doc = new jsPDF () var text = 'This is a text without real content but with 59 characters.' var lineHeight = doc.getLineHeight (text) / doc.internal.scaleFactor var ...
13 lut 2022 · instance.Core.documentViewer.addEventListener('click', (e) => {. const windowCoordinates = getMouseLocation(e); const displayMode = documentViewer.getDisplayModeManager().getDisplayMode(); // takes a start and end point but we just want to see where a single point is located.
4 mar 2021 · const rect = instance.docViewer.getExactViewportRegionRect(instance.docViewer.getCurrentPage()) Which gets the current coordinates of the viewport. To get the center point, you just need to divide the x2 and y2 values by two. Let me know if you have any other questions!
This tutorial shows how PDF.js can be used as a library in a web browser. examples/ provides more examples, including usage in Node.js (at examples/node/). Document. The object structure of PDF.js loosely follows the structure of an actual PDF. At the top level there is a document object.
i see a line code in pdf.js like this ctx.transform(scaleX, 0, 0, scaleY, positions[i], positions[i + 1]); means the last two params is the X position or Y position? but i use the postion X and postion Y in canvas to draw a Rect. it's not the correct position,so how can i get the right position.
The string received by the loadPageText callback function can be used by the getTextPosition function to get the position of individual character on a page. This can be useful for creating annotations on top of text.
You can modify the defaultUrl app option in the web/app_options.js file or you can append the ?file= query string to the viewer URL, e.g. http://mozilla.github.com/pdf.js/web/viewer.html?file=compressed.tracemonkey-pldi-09.pdf. In the latter case, the PDF path/URL must be encoded using encodeURIComponent().
