How to merge multiple PDFs into one?

Use our "Merge PDFs" tool: select your files, drag to reorder, and click Process. Everything is done in your browser — no files are uploaded to any server.

How to compress a PDF without losing quality?

Our compression tool automatically reduces PDF file size while maintaining visual quality. Simply upload your file and download the result.

How to unlock a password-protected PDF?

Upload the protected PDF to our "Unlock PDF" tool. If the file only has copy/print restrictions, removal is automatic. For open passwords, you'll need to enter the password.

Is it safe to use online PDF tools?

Yes! At Unlocked PDF, all files are processed locally in your browser using WebAssembly. No files are ever sent to our servers.

Can I convert images to PDF for free?

Yes, our "Image to PDF" tool converts JPG, PNG, and WebP into multi-page PDF documents, completely free.

可以将多张图片转为一个PDF吗？

可以。所有图像合并为一个多页文档。

是的。图像以原始分辨率插入。

可以选择顺序吗？

可以。拖放以按所需顺序排列。

自动适应图像尺寸，或选择A4/Letter。

图片转 PDF

关于此工具

将您的JPG、PNG和WEBP图像转换为高质量PDF文档。将多张照片合并为一个PDF——非常适合文档扫描或创建作品集。

图片 转 PDF

关于此工具

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图片转 PDF