🎞️ GIF 转 PDF（支持动图逐帧）GIF to PDF Converter
把 GIF 图片转换成 PDF，动图可以拆成每帧一页（适合把表情包、动画分镜或教程步骤打印出来），也可只取第一帧；多文件合并、排序，默认无损保存像素，全部在浏览器完成。Convert GIF images to PDF — animated GIFs can be split into one page per frame (handy for printing storyboards, tutorials or sticker sheets) or reduced to the first frame. Combine and reorder several files; pixels are stored losslessly by default, all in your browser.
使用说明与常见问题How-to & FAQ
「GIF 转 PDF（支持动图逐帧）」是什么？What is the GIF to PDF Converter tool?
把 GIF 图片转换成 PDF，动图可以拆成每帧一页（适合把表情包、动画分镜或教程步骤打印出来），也可只取第一帧；多文件合并、排序，默认无损保存像素，全部在浏览器完成。Convert GIF images to PDF — animated GIFs can be split into one page per frame (handy for printing storyboards, tutorials or sticker sheets) or reduced to the first frame. Combine and reorder several files; pixels are stored losslessly by default, all in your browser.
如何使用「GIF 转 PDF（支持动图逐帧）」？How do I use the GIF to PDF Converter tool?
在「GIF 转 PDF（支持动图逐帧）」中，按需设置「页面大小」、「方向」、「页边距 (0–50 mm)」、「图片压缩」、「JPEG 质量 (30–100)」等选项，然后点击「生成 PDF」、「清空」按钮即可。支持拖放文件。In the GIF to PDF Converter: Set "Page size", "Orientation", "Margin (0–50 mm)", "Image compression", "JPEG quality (30–100)", then click "Create PDF", "Clear". Drag-and-drop files is supported.
动图会怎么转换？How are animated GIFs converted?
勾选“动图拆成每帧一页”时，每一帧都会还原成完整画面（包括只更新局部的帧）后各占一页，最多 500 帧；不勾选则只取第一帧。逐帧解码使用浏览器的 ImageDecoder 接口，Chrome 和 Edge 支持；其他浏览器会自动退回只转换第一帧并提示。PDF 本身不能播放动画。With "One page per animation frame" on, every frame is rebuilt into the full picture (including frames that only update part of the image) and gets its own page, up to 500 frames; off, only the first frame is used. Frame decoding uses the browser's ImageDecoder API (Chrome and Edge); other browsers fall back to the first frame with a notice. PDFs can't play animations.
“无损”和“JPEG”有什么区别？What's the difference between Lossless and JPEG?
无损模式把像素原样压缩（类似 PNG，灰度图自动用灰度存储），画质完全不变，适合截图、文字扫描和线条图；JPEG 模式文件更小，适合照片。“自动”会按格式选择合适的方式。透明区域在无损模式下保留，JPEG 模式下填充白色。Lossless stores the pixels exactly (PNG-style compression; grayscale images are stored as grayscale), so quality is unchanged — best for screenshots, text scans and line art. JPEG gives smaller files and suits photos. Auto picks per format. Transparency is kept in Lossless mode and filled with white in JPEG mode.
页面大小和页边距怎么选？How do I choose page size and margins?
“按图片尺寸”让每页正好等于图片大小（按图片自带的 DPI 换算，没有 DPI 信息时按 96 DPI），没有白边；选 A4 / Letter 等标准纸张时，图片会等比例缩放并居中，方向选“自动”时横图自动用横向页面。"Image size" makes each page exactly the size of its image (using the image's own DPI, or 96 DPI if none is stored), with no white border. With A4, Letter and other paper sizes the image is scaled proportionally and centred; with orientation on Auto, landscape images get landscape pages.
图片会上传吗？Are my images uploaded?
不会。解码和生成 PDF 都在你的浏览器里完成（pdf-lib），图片不会离开你的设备。No. Decoding and PDF creation both happen in your browser (pdf-lib); your images never leave your device.
「GIF 转 PDF（支持动图逐帧）」免费吗？需要注册吗？Is the GIF to PDF Converter free? Do I need an account?
「GIF 转 PDF（支持动图逐帧）」完全免费，无需注册或安装，打开网页即可使用，手机和电脑都能用；输入的内容只在你的浏览器本地处理。The GIF to PDF Converter is completely free with no sign-up or install and works on phones and desktops; what you enter is processed only in your browser.