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合并PDF

将多个PDF文件合并成一个文档。免费在线PDF合并器，支持拖放重新排序。

Privacy-first

Clear file handling

Batch-ready

Built for real workflows

Fast workflow

Progress and feedback

Smart controls

Useful options, not clutter

Upload PDF Files

Drag and drop PDF files here, or click to browse. You can add multiple files.

pdf .pdfUp to 100 files
Instant process End-to-end encrypted Clipboard paste

Merge PDFs without changing the page order

Combine two or more PDF files into one document, choose the order before processing, and download the finished file. This is useful when reports, scanned pages, invoices, forms, or supporting documents need to travel as one file.

When to merge PDFs

Merge PDFs when several related files belong together: a report with its appendices, a scanned application with supporting pages, or multiple project documents that need one shareable file.

Before you download

Check the file order and page count. If a page belongs in the wrong place, reorder the source files before merging rather than fixing the finished PDF later.

Smart workflow

Do more in the same workflow

Build from the job you started: batch compatible files, keep the right output format, then move straight into the next useful step without hunting through the site.

Input

.pdf

Output

PDF

Batch

100+ files per run

Built for batch work

100+ files per run. Use one run when the files share the same task.

Continue the job

Choose a related operation below instead of starting from scratch.

Output-ready

Results stay focused on download, preview and the next useful action.

File-size clarity

No fixed file-size limit per configured tool limit.

Natural next steps

Continue with a related tool using the same file workflow.

Alternate MergeSplit PdfOrganize Pdf

Smart workflows

Finish the job, not just the file

Use the existing tool graph to continue into useful next steps. Bulk and output-packaging capabilities are surfaced automatically where the underlying tool supports them.

Bulk processingZIP-ready outputWorkflow-ready

Merge → compress → package

Bulk-ready

Combine a document pack, reduce the final PDF when useful, and keep the finished file ready for download or archive.

  1. Merge Pdf
  2. Compress Pdf
Output: Compact merged PDF

Best for reports, receipts, applications and client packs.

Continue

Merge → number → deliver

Bulk-ready

Build one ordered PDF and add final pagination before delivery.

  1. Merge Pdf
  2. Page Numbers
Output: Numbered document pack

Best for formal reports and submission packs.

Continue

Merge, compress and share

Bulk-ready

Combine documents and immediately reduce the finished PDF for easier sharing.

  1. Merge Pdf
  2. Compress Pdf
Output: Compact merged PDF

Best for email, portals and client delivery.

Continue

Create a secure document pack

Bulk-ready

Merge documents, add a watermark and protect the final PDF.

  1. Merge Pdf
  2. Add Watermark
  3. Encrypt Pdf
Output: Protected document pack

Best for contracts, reports and controlled distribution.

Continue

Merge and clean the pack

Bulk-ready

Combine documents, remove blank pages and optimize the result.

  1. Merge Pdf
  2. Remove Blank Pages
  3. Compress Pdf
Output: Clean compact PDF

Best for scanned batches with accidental blank pages.

Continue
Merge PDFs as a workflow, not a button

Make the next step easier

Combine documents in the order you actually need, then download one clean PDF instead of juggling separate files.

Bulk PDF selection

Visual reordering

Large-batch workflow

One final PDF for sharing or submission

A smoother workflow

  1. 1Add your source PDFs
  2. 2Drag them into the correct order
  3. 3Review the sequence
  4. 4Merge and download

A human tip

Why merging PDFs is usually a preparation task

People merge PDFs because something else is waiting at the end: a submission, a client handoff, an archive, or a single document to sign. The experience should therefore focus on confidence—clear ordering, predictable output, and no surprise quality loss.

Split PDFCompress PDFPDF Multi Tool

Merge PDFs without changing the page order

Combine two or more PDF files into one document, choose the order before processing, and download the finished file. This is useful when reports, scanned pages, invoices, forms, or supporting documents need to travel as one file.

When to merge PDFs

Merge PDFs when several related files belong together: a report with its appendices, a scanned application with supporting pages, or multiple project documents that need one shareable file.

Before you download

Check the file order and page count. If a page belongs in the wrong place, reorder the source files before merging rather than fixing the finished PDF later.

About This Tool

合并PDF允许您快速轻松地将多个PDF文档合并成一个文件。无论您是整合报告、合并扫描文档还是组装演示文稿，这个工具都能使过程变得无缝。

只需上传文件，使用拖放功能按所需顺序排列，然后将它们合并成一个连贯的文档。该工具保留原始文件的质量，并可选择保留每个源文档的书签。

所有合并操作都在您的浏览器本地进行，确保敏感文档的完全隐私。

How to Use

  1. 上传PDF文件

    将多个PDF文件拖放到上传区域，或点击从设备中选择文件。

  2. 排列顺序

    拖放文件缩略图以按所需顺序排列。

  3. 合并并下载

    点击合并按钮组合所有文件，然后下载合并后的PDF。

Use Cases

合并报告

将月度或季度报告合并成一个年度文档，便于分发和存档。

组装作品集

将多个项目文档、证书或工作样本合并成专业作品集。

整合发票

将多张发票或收据合并成一个文档，用于会计和记录保存。

Frequently Asked Questions

可以合并多少个PDF？+

您可以一次合并最多100个PDF文件，总大小最高可达500MB。

合并后的PDF会保持原始质量吗？+

是的，合并过程保留所有文档的原始质量，不会进行任何压缩或质量损失。

可以合并受密码保护的PDF吗？+

受密码保护的PDF需要先解密。请使用我们的解密PDF工具在合并前移除密码。

Smart workflows

Finish the job, not just the file

Use the existing tool graph to continue into useful next steps. Bulk and output-packaging capabilities are surfaced automatically where the underlying tool supports them.

Bulk processingZIP-ready outputWorkflow-ready

Merge → compress → package

Bulk-ready

Combine a document pack, reduce the final PDF when useful, and keep the finished file ready for download or archive.

  1. Merge Pdf
  2. Compress Pdf
Output: Compact merged PDF

Best for reports, receipts, applications and client packs.

Continue

Merge → number → deliver

Bulk-ready

Build one ordered PDF and add final pagination before delivery.

  1. Merge Pdf
  2. Page Numbers
Output: Numbered document pack

Best for formal reports and submission packs.

Continue

Merge, compress and share

Bulk-ready

Combine documents and immediately reduce the finished PDF for easier sharing.

  1. Merge Pdf
  2. Compress Pdf
Output: Compact merged PDF

Best for email, portals and client delivery.

Continue

Create a secure document pack

Bulk-ready

Merge documents, add a watermark and protect the final PDF.

  1. Merge Pdf
  2. Add Watermark
  3. Encrypt Pdf
Output: Protected document pack

Best for contracts, reports and controlled distribution.

Continue

Merge and clean the pack

Bulk-ready

Combine documents, remove blank pages and optimize the result.

  1. Merge Pdf
  2. Remove Blank Pages
  3. Compress Pdf
Output: Clean compact PDF

Best for scanned batches with accidental blank pages.

Continue

Continue with a related tool

Split PDF

Separate pages when one document needs to be divided.

Organize PDF

Reorder pages before creating the final document.

Compress PDF

Reduce the final file size for sharing or upload.

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