图片转 PDF
免费·无需注册·文件永不离开你的设备
How to convert images to PDF in 3 steps
Turn a folder of photos or scans into one clean, shareable PDF — in the order you choose, at the size you choose.
Add your images
Drop JPG, PNG, WebP, GIF, or BMP files into the box above — as many as you need.
Arrange and configure
Put the images in order, pick a page size (A4, fit, or original), set margins and orientation.
Download the PDF
Click Convert. One image per page, assembled into a single document.
Why convert images to PDF with AmiPDF
One document instead of an attachment pile.
隐私优先
处理完全在你的浏览器内完成。不上传、不存储、不外传——绝不。
无需注册，无水印
无账号、无邮箱、无限制。输出文件与输入完全一致。
Full format support
JPG, PNG, WebP, GIF, BMP — mixed batches convert together into one tidy PDF.
任何设备可用
Windows、Mac、Linux、Android、iOS 上体验一致——无需安装。
When to convert images to PDF
Receipts for an expense claim, photos of an apartment, scanned ID documents, homework pages — anything a recipient should open in order, on any device, without a gallery app.
Conversion happens in your browser, so personal photos and ID scans never touch a server.
Convert images to PDF on any platform
AmiPDF 在你的浏览器中运行——无需安装、无需配置、无需更新。
Windows
Chrome, Edge, Firefox
macOS
Safari, Chrome
Linux
Any modern browser
iOS
Safari on iPhone, iPad
Android
Chrome, Samsung Internet
Frequently asked questions
Which image formats can I convert?
JPG, PNG, WebP, GIF, and BMP — and you can mix them freely in one batch.
Will my images lose quality in the PDF?
No. Images are embedded at their original resolution; the PDF is just a container around them.
Can I put multiple images on one page?
The default is one image per page. For contact-sheet layouts, convert first, then use Crop PDF to trim as needed.
How do I control the page size?
Choose A4 for documents, “Fit to image” for photos, or “Original size” to match each image's pixel dimensions.
Is there a limit on image count or size?
No fixed limit. Assembling runs in your browser; very large batches depend on your device memory.
Are my photos uploaded during conversion?
No. The PDF is built entirely on your device — nothing is transmitted anywhere.
相关 PDF 工具
继续——处理 PDF 所需的其他工具，全部免费、全部本地运行。