Six documents against react-pdf, pdfmake and jsPDF. Same words, same pages, same ink - checked before a single number is printed. The harness and every case are in the repo.

Our application uses OpenLayers+PostGIS to visualize and process millions of spatial data files (GeoJSON). We have a requirement to be able to export the processed final data as PDF/GeoPDF Vector maps. Every solution, including the official OL example, first converts the OL canvas to a raster, then converts the image to PDF using something like jspdf. The raster conversion completely destroys the vector data, making the final PDF unusable for professional purposes (lines are pixelated, labels are blurred) (example below) Is there a method that *preserves the Vector points/lines/labels in the map by skipping the raster conversion? Example: maps exported from AutoCAD/ArcGIS/QGIS have perfect, infinitely zoomable vector pdfs. I've looked far and low for this, but couldn't find an answer, except for using 'gdal_translate', which seems cumbersome and poorly documented for programmatic usage.

jsPDF is a JavaScript library for generating PDF documents in web browsers and Node.js. The post jsPDF – JavaScript library for generating PDF documents appeared first on LinuxLinks.

I am using: * angular 8V, * Open Layers 6.4 V I would like to save my OpenLayers map as PDF. I am able to Print map smoothly using this example. OpenLayer Example. input Form is: selection of pdfType(orientation, landscape), pdfSize(a4,a3...), DPI(75,150..).. Requirements is: * Print Map only selected Polygon Area with scale of Polygon(scale should be top-left) * Print current map view with background but selected Polygon should have map content. I have tried these codes before: const orgExtent = map.getView().calculateExtent(); // I have image size const polygonExtent = map.getView().calculateExtent(ImagesizeOnMap); const polygon = fromExtent(extent); const feature = new Feature(polygon); const vectorSource = new VectorSource({ }); vectorSource.addFeatures([feature]); const vectorLayer = new VectorLayer({ source: vectorSource, }); vectorLayer.set('name', 'polygonPrint'); map.addLayer(vectorLayer); // Here difficulty to find selected polygon scale(like 200mi).. tried with **control.element.innerText** const orginalMapSize= map.getSize(); const viewResolution = map.getView().getResolution(); const size = ImagesizeOnMap;// polygon image size const width = Math.round((pdfSize[0] * resolution) / 25.4); const height = Math.round((pdfSize[1] * resolution) / 25.4); map.once('rendercomplete', function() { mapCanvas.width = width; mapCanvas.height = height; const mapContext = mapCanvas.getContext('2d'); Array.prototype.forEach.call( document.querySelectorAll('.ol-layer canvas'), function(canvas) { if (canvas.width > 0) { const opacity = canvas.parentNode.style.opacity; mapContext.globalAlpha = opacity === '' ? 1 : Number(opacity); const transform = canvas.style.transform; const matrix = transform .match(/^matrix\(([^\(]*)\)$/)[1] .split(',') .map(Number); // Apply the transform to the export map context CanvasRenderingContext2D.prototype.setTransform.apply( mapContext, matrix ); mapContext.drawImage(canvas, 0, 0); } } ); mapContext.globalAlpha = 1; const pdf = new jsPDF(orientation, undefined, undefined); pdf.addImage( mapCanvas.toDataURL('image/jpeg'), 'JPEG', 0, 0, pdfSize[0], pdfSize[1] ); ... ... // From Above Example Link added same code I have tried many solution but can't get the desired result.

https://www.youtube.com/watch?v=PohU0LmQNGM前回のオマケみたいなもんだと思ってくださいしけいさんぽシリーズ:https://www.youtube.com/playlist?list=PL84xJVcqNaCn2G8v-uhCfnyyqlqVsFqgY

Our application uses OpenLayers+PostGIS to visualize and process millions of spatial data files (GeoJSON). We have a requirement to be able to export the processed final data as PDF/GeoPDF Vector maps. Every solution, including the official OL example, first converts the OL canvas to a raster, then converts the image to PDF using something like jspdf. The raster conversion completely destroys the vector data, making the final PDF unusable for professional purposes (lines are pixelated, labels are blurred) (example below) Is there a method that *preserves the Vector points/lines/labels in the map by skipping the raster conversion? Example: maps exported from AutoCAD/ArcGIS/QGIS have perfect, infinitely zoomable vector pdfs. I've looked far and low for this, but couldn't find an answer, except for using 'gdal_translate', which seems cumbersome and poorly documented for programmatic usage.

Every SaaS app eventually needs to send invoices. And every time, developers reach for a PDF library — pdfkit , puppeteer , jsPDF — and spend days wiring it up. There's a better way. Here's how to...

PDF生成ライブラリ「jsPDF」に複数の脆弱性が明らかとなった。一部は「クリティカル」とされており、アップデートが提供されている。 ：Security NEXT

jsPDF is a library to generate PDFs in JavaScript. Prior to version 4.2.1, user control of arguments of the `createAnnotation` method allows users to inject arbitrary PDF objects, such as JavaScript actions. If given the possibility to pass unsanitized input to the following method, a user can injec

A critical 9.6 CVSS vulnerability in jsPDF (CVE-2026-31938) allows attackers to inject malicious scripts via XSS. Update to version 4.2.1 immediately.