Convert PNG to PDF
Most PNG-to-PDF tools paste the pixels onto a page. This one traces them, so the PDF is outlines that stay sharp at any zoom and separate at the press.
- 输入
- PNG
- 输出
- 引擎
- WASM,在您的标签页中运行
- 价格
- 免费预览
将图像拖放到此处,或直接粘贴
您的图像绝不会被上传,它会在此标签页中完成描摹。打开完整转换器
预设
- 01标志 — 本页所用设置16 种颜色
- 02线稿黑白
- 03照片64 种颜色
- 04刺绣8 种颜色 · 镂空
- 05刻字膜4 种颜色 · 镂空
- 06激光黑白 · 多边形
- 输出 · SVG · PDF · EPS · DXF
- 预览免费 · 使用 Pro(每月 €9.00)下载
- 您的文件始终留在此标签页中
为什么选择 vectortrace
- 凭证 1 / 3
浏览器内运行,隐私可靠
该引擎是运行在您设备上一个 Worker 中的 WebAssembly 程序。您的图像绝不会被上传 —— 因此没有可泄露的内容,没有需要删除的内容,也无需盲目信任任何一方。
- 凭证 2 / 3
真正可编辑的路径,而非套壳处理
引擎会先将图像划分为若干色块区域,提取区域之间的边界,并对其进行曲线拟合。得到的是真正的几何图形 —— 每个区域一个填充,每个节点都可以自由移动 —— 全部在标签页本地生成,从不经过服务器。
- 凭证 3 / 3
印刷与生产实际使用的格式
SVG 和 PDF 适用于设计稿;EPS 和 DXF 适用于刻字机、雕刻机与刺绣软件。都是真正可用的文件,能在 Illustrator、Inkscape 和 LibreCAD 中打开 —— 而不是内嵌 JPEG 的 SVG。
格式速览
| 格式速览 | PNG · 输入 | PDF · 输出 |
|---|---|---|
| 类型 | Raster. A grid of pixels. | Vector. A page description with the paths embedded. |
| 缩放特性 | Blurs or pixelates past its native size. | Sharp at any size. |
| 颜色 | Up to 16.7 million colours with 8-bit alpha. Lossless. | Solid fills, with real page units and a defined page box. |
| 可编辑于 | Photoshop, GIMP, Affinity Photo. | Illustrator, Inkscape, Affinity Designer, Acrobat. |
| 典型用途 | Screenshots, web images, marks exported from a design tool. | Sending artwork to a printer, who expects a page size. |
值得了解
There are two completely different things called "PNG to PDF". The common one puts your bitmap on a PDF page — useful for archiving a screenshot, useless for print, and it blurs the moment anyone zooms. This one traces the image and writes the resulting paths into the PDF, so the file has no raster in it at all.
PDF is a good handoff format because everyone can open it and it carries a real page size. If the recipient needs to edit rather than print, send the SVG as well; a PDF is editable in Illustrator and Inkscape but it was not designed to be an interchange format.
Vector PDF and vector SVG hold the same geometry here — the exporters are two writers over one document, so the paths, the node count and the palette are identical.
工作原理
Drop the PNG
Drop the artwork you want as a vector PDF.
Trace and check the zoom
Zoom the preview to 800%. If the edges are still crisp, the geometry is right; if they are stepped, you are looking at a bitmap.
Export the PDF
The page carries a real size, so set the physical dimensions before you send it to print.
基准测试
用数据说话,而非营销话术。语料库、测试方法以及本次测试产生的每一项数据均全部公开。
测试方法 → /benchmarks- boundary error, p95
- 0.09 px
- region-count error
- 0.000
- node-count ratio
- 1.00×
常见问题
- 01How is this different from the usual PNG-to-PDF tool?
- The usual tool embeds the bitmap on a page, so the PDF is the PNG with a wrapper and it blurs when zoomed. Here the image is traced first and the PDF contains paths, which is why it stays sharp and can be edited.
- 02Can I still get the original pixels in a PDF?
- Not from here — that is a different job and your operating system print dialogue already does it. This page is for when you need the artwork as vector.
- 03Does the PDF open in Illustrator?
- Yes. It is ordinary vector PDF, so Illustrator, Inkscape, Affinity Designer and Acrobat all open it, and the paths are selectable.
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