Document combination

Browser-based mergingReorder before export50MB per file

Merge PDF files in your browser.

Combine multiple PDFs into one ordered packet. No upload step for standard workflows. Merge and export in one browser session.

Input
Multiple PDFs
Runtime
Browser tab
Output
One PDF
Merge PDFsSplit pagesCompress PDFProtect PDF

Drop PDF files to merge

Preview each document, arrange the order, and combine into one PDF locally.

Local processing · up to 50MB per file
How to use Merge PDF
  1. 01

    Choose files

    Select multiple PDF files to combine. Files are loaded into your browser session for local processing.

  2. 02

    Arrange order

    Drag and drop to reorder pages or use the interface to organize your documents before merging.

  3. 03

    Download merged PDF

    Files are merged in your browser and the output is prepared for download in the same session.

Files are stitched as a document set, not sent to a decorative cloud box.

Document integrity

The workflow is designed to preserve core formatting, bookmarks, metadata, and page structure through the merge.

Local processing

Supported merge workflows run in browser memory so files stay in the current session.

Smart ordering

Arrange files before exporting your final merged document.

Document privacy

For standard workflows, files are processed in your browser session and do not require a server upload step.

Batch processing

Combine multiple files in one run with ordering and preview controls.

Pair with compression

If the merged output is too large for a portal, continue into the compression workflow.

A practical guide to merging PDFs locally

Merging PDF files is essential for document organization, but many tools require uploading files to remote servers before processing. DocuStitch removes that step for standard workflows.

Why local merging matters

With DocuStitch, merge operations run in your browser session using WebAssembly (WASM), so you can complete common document workflows without a separate cloud queue.

Document integrity preservation

The merge workflow preserves core formatting, bookmarks, and metadata so output files remain usable.

Performance in real work

Because processing happens on your device, you avoid upload wait times and can merge files quickly.

Document integrity

Preserves core formatting, bookmarks, and metadata during merge workflows.

Smart ordering

Arrange pages and file order with clear controls.

Batch processing

Combine multiple files in one workflow with preview support.

Fast execution

Start processing immediately with local browser resources.

Frequently asked questions about Merge PDF
Is it safe to merge sensitive PDFs online?

DocuStitch is designed for local-first processing. For standard workflows, files are processed in your browser session without a server upload step.

Can I merge password-protected PDFs?

Yes. You can unlock protected files with the correct password, then merge them in the same session.

Will the merged PDF preserve formatting?

The workflow is designed to preserve core formatting, bookmarks, metadata, and document structure.

Can I reorder pages before merging?

Yes. You can reorder pages and document sequence before final export.

Do I need to install any software?

No. The tool runs in modern browsers with WebAssembly support.