关于
浏览器使用 PDF.js 渲染完整页面，输出 JPG 或 PNG，使用 fflate 打包 ZIP，不使用生成式 AI。
限制：PDF 最大 150 MB、500 页；每次转换 50 页；每页最多 1600 万像素，单边 8192 像素；每批图片最多 120 MB。复杂文档仍可能超出内存，请减少页数或降低 DPI。
输出使用白底，不保留可选文字、交互表单、链接或矢量图形。不支持照片提取、OCR 或密码解锁，提高 DPI 不能恢复缺失细节。
About the toolkit · English
pdftoimg is an independent browser-based PDF toolkit at pdftoimg.app, maintained by its creator and published under the pdftoimg name. For questions or bug reports, contact support@pdftoimg.app.
The toolkit includes PDF-to-image conversion, image-to-PDF creation, merging, page extraction, deletion, rotation, embedded JPEG extraction, and rectangular area removal. Each tool shows its own limits. The converter limits above apply to PDF-to-image conversion; image-to-PDF supports up to 1,500 images on its dedicated batch page, subject to device memory.
File processing runs locally in your browser. Feedback is sent only when you submit the feedback form; see the privacy page for hosting and feedback data handling.
PDF editing also uses pdf-lib.