在线合并PDF
按您选择的顺序，将多个 PDF 合并为一个文档。
使用流程
1. Upload your file
Drag and drop or choose a PDF file from your device. You can add up to 20 files at once. Everything is checked against its real file type before processing starts.
2. We process it
Your file runs through an isolated job dedicated to 合并 PDF, with clear progress so you always know what stage it's at.
3. Download the result
Get your finished PDF file with one click. The original upload and the result are deleted automatically afterward.
您的文件将保持私密
合并 PDF 在隔离的处理任务中运行。您上传的文件和生成的结果会在下载有效期结束后自动删除——我们不会保留任何副本,下载链接也是随机生成、仅限单次使用且会过期的。
常见问题
No — this tool works without creating an account. There is no sign-up option at all right now.
合并 PDF accepts PDF files and produces a PDF result, up to 20 files per job.
Yes — page order, orientation, and content are preserved exactly. Nothing is re-rendered or re-compressed; pages are moved, not redrawn.
Your file is processed in an isolated job and deleted automatically, along with the result, once your download window ends.