Merge PDF

Multiple PDFs to Single PDF Stack, reorder, and merge PDFs into one polished document.

Drop contracts, appendices, and scans into File Studio, then rearrange pages before exporting a single, cohesive PDF.

Works 100% offline on both Windows and Mac.

All conversions happen locally on your computer. No uploads, no subscriptions, and no background syncing.

Multiple PDFsSingle PDF

Default preview image can be updated per conversion type.

Multiple PDFs to Single PDF conversion preview

Looking for something else? Explore more offline conversions with File Studio:

How it works

Convert Multiple PDFs to Single PDF in four simple steps.

The flow mirrors the main File Studio experience: install the app, drop in your files, pick the right tool, and export clean, ready‑to‑share output — all without sending anything to the cloud.

1

Install File Studio

Download the app, move it to Applications, and open it. No sign‑ups or accounts required.

2

Add your Multiple PDFs files

Drag-and-drop your multiple pdfs files into the window or click to browse from disk.

3

Choose Multiple PDFs → Single PDF

Pick the dedicated tool, then adjust resolution, quality, and page range until the preview feels right.

4

Export & keep working

Select an output folder and run the conversion. Your originals stay untouched on your device.

Best practices for cleaner results

  • Group related files into folders before converting so your output stays organized and easy to archive.
  • Use higher resolution presets when you know the result will be printed, zoomed in, or reused in design tools.
  • Keep an unedited copy of your original Multiple PDFs files for audits, record‑keeping, or compliance workflows.
  • Combine this tool with other File Studio actions like compress, merge, or split to streamline entire document pipelines.

Why File Studio

Built for trustworthy, everyday Multiple PDFs to Single PDF work.

You get precise control over the output, predictable file names, and a private workflow that keeps sensitive documents on your own machine.

Features tuned for this conversion

  • Drag to reorder entire documents or individual pages.
  • Visually inspect pages before merging to avoid duplicates.
  • Normalize metadata like title and author across the merged file.

Why use File Studio for this conversion?

  • Merge PDFs from different sources into one file.
  • Drag‑and‑drop to reorder or remove pages before export.
  • Standardize metadata so merged documents stay searchable.

Real‑world ways people use it

  • Assemble a full client packet from multiple PDFs.
  • Bundle all project documents into a single archive.
  • Combine multiple scan batches into one continuous file.

Lifetime plan

No subscriptions. No strings.

One-time license, yours forever. Get all current tools, future updates, and on-device processing without monthly fees.

Lifetime Plan

One purchase. Keep File Studio forever.

$29

one-time

What's included

  • Unlimited conversions
  • Updates for 1 year
  • Offline-first file & image conversion
  • PDF toolkit for everyday tasks
  • Works on Mac & Windows
  • All processing done on your device
  • No uploads or accounts required
Buy lifetime license

FAQ

Frequently asked questions

Does merging PDFs change my original files?

No. File Studio leaves your source PDFs as‑is and writes the merged result as a new document.

Can I merge password‑protected PDFs?

You can merge PDFs you have access to. If a file is locked, unlock it first using your password, then add it to the merge queue.

Can I see a page preview before I merge?

Yes. File Studio lets you visually scan through pages, reorder them, and remove any you don’t want before committing to the merge.

Can I merge PDFs with different page sizes and orientations?

You can. File Studio keeps the original page sizes and rotations so nothing is stretched or cropped unexpectedly in the merged file.

Is there a limit to how many PDFs I can merge?

You can merge large sets of PDFs as long as you have enough memory and disk space. File Studio is optimized for big document bundles.

Can I clean up titles and author information on the merged PDF?

Yes. You can set consistent metadata on the merged document so exported files look professional and are easy to search.