图片转 PDF — 免费

按照你希望在 PDF 中呈现的顺序将照片拖入上传区，或在上传后于预览条上重新排列。点击「转换」即可生成一份多页 PDF，每页对应一张图片。每一页都会自动匹配图片的宽高比，因此竖版和横版照片都不会被裁切。

可以。上传后，左右拖动缩略图即可重新排序，点击 X 标记可删除某一页，必要时还能将单页旋转 90°。预览条中的顺序即为导出 PDF 的顺序，因此简单的拖放操作就能让你免去重新上传来纠错的麻烦。

JPG/JPEG, PNG (with transparency flattened to white), WebP, HEIC (iPhone photos), AVIF, BMP and TIFF are all accepted. iPhone HEIC files are auto-converted on our secure server before the PDF is built, so you do not have to share-to-JPG first — your files are deleted automatically after processing and we never store or share them. Mixed-format batches work — you can mix iPhone HEICs, screenshots and scanned PNGs in the same PDF.

可以。图片以全分辨率嵌入且不会重新压缩，因此一张 4000×3000 的手机照片能以视网膜级清晰度打印。如果你输出的 PDF 太大无法通过邮件发送，之后可以用我们的 PDF 压缩工具处理一下——它让你根据用途（屏幕、打印、归档）选择质量目标。

可以。选择 A4、Letter、Legal、A3、A5 或自动（匹配图片尺寸）。选取纵向或横向方向，并将边距设置为 0 毫米（满版出血）至 25 毫米。自动模式让每一页都精确保持图片的宽高比，是制作相册和旅行影集最整洁的输出方式。

上传的文件会在转换完成后几分钟内删除，生成的 PDF 不带水印、不带可追溯到我们的元数据、也没有跟踪像素。这让它可以放心用于通过电子邮件发送身份证扫描件、病历、学校作业和机密的客户工作文件。

将一张 JPG 拖入上传区，选择页面尺寸（A4、Letter 或贴合图片），然后点击“生成 PDF”——即可得到一份干净、无水印的单页 PDF。同样的流程也适用于单张 PNG、WebP 或 HEIC 照片。

可以。添加你的截图 PNG 或 JPG，拖动到你想要的顺序，导出一份多页 PDF — 非常适合把聊天记录、收据或应用界面保存为单个可分享的文档。

Type your preferred name into the Output filename field in the Output panel — it defaults to combined.pdf but you can change it to anything ending in .pdf, and the name you set is what your browser saves the file as. This is handy when combining multiple photo batches and you want each export clearly labeled.

Orientation only applies when Paper size is set to A4 or Letter, because those are fixed-size pages that need a rotation choice. Selecting Fit to image sizes each page to match its source photo's own aspect ratio instead, so there is no separate orientation to choose — the buttons disable automatically to reflect that.

Drag the Margins slider anywhere from 0 mm (edge-to-edge, no border) up to 40 mm of white space around each photo. Margins only apply to A4/Letter pages — the slider is automatically disabled when Paper size is set to Fit, since fit-to-image pages have no fixed frame to add a border to.

选择 A4 或 Letter 作为纸张尺寸，让页面按标准尺寸打印；将"方向"与你大多数照片的拍摄方式匹配（手机照片选纵向，宽幅照片选横向）；并设置 5-10 mm 的小边距，这样照片在打印和裁切时不会出血到边缘。对于不在乎打印尺寸的纯数字分享，改用"适应图片"，并完全跳过边距和方向设置。

Yes — click the Add more images button above the page list at any point before building the PDF, and the new files are appended to the end of your existing batch. Your current page order, paper size, orientation, margins and output filename are all preserved, so you don't lose any work already done; just drag or use the reorder arrows to move the newly added pages into place.

Yes — every page row has up and down arrow buttons next to the drag handle that move it one position at a time, giving keyboard-only and screen-reader users a fully equivalent way to reorder pages without pointer drag-and-drop. Pressing an arrow moves that page immediately and the page preview updates the same way it would after a drag.