Merge PDF

Combine PDFs and images into a single document with full page-level control.

Browser Processing Only (Offline Ready)
1

Upload your file

Drag & drop or click to select a file from your device.

2

Adjust settings

Configure options to get the result you want.

3

Download result

Get your processed file instantly. No waiting.

Key Features

Page-Level Selection & Rotation

Expand any PDF in the queue to see thumbnails for every page. Click to skip pages you don't need, rotate individual pages 90° to fix scans, then merge — all without leaving the browser.

PDF + Image Mixed Queue

Drop PDFs alongside JPG, PNG, HEIC, WebP, and AVIF photos in any order. Each image becomes its own page in the output, scaled to match the surrounding document size.

Smart Blank Divider Pages

Insert blank pages between sections to separate chapters or leave room for handwritten notes. Each blank inherits the previous page's size — no manual A4 vs Letter guessing.

Metadata, Sort, and Custom Filename

Edit Title, Author, Subject, and Keywords baked into the PDF. Sort the queue by name or size and set a custom output filename — perfect for archiving and search.

Preview Before Downloading

After merging, expand the in-browser preview to verify pages, order, and rotations. Catch mistakes before saving — no more opening Acrobat just to double-check.

100% Private — Nothing Uploaded

Files are read, parsed, and merged entirely in your browser with pdf-lib. Confidential contracts, medical records, and financial documents never leave your device.

About This Tool

What is Merge PDF?

Merge PDF combines multiple PDFs — and now images (JPG, PNG, HEIC, WebP, AVIF) — into a single document with full page-level control. Reorder files, expand any PDF to pick or rotate individual pages, insert blank divider pages, and edit document metadata, all locally in your browser using pdf-lib.

No page limits, no file size limits, no watermarks. Preview the result before you download.

Common Use Cases

  • Expense Reports: Bundle scanned receipts (HEIC from iPhone) with invoice PDFs into one submission
  • Long Reports: Insert blank divider pages between sections to separate chapters
  • Stakeholder Bundles: Pick only the relevant pages from each source report when packaging for review
  • Document Bundles: Merge applications, contracts, and supporting images for legal submissions
  • Presentation Decks: Combine individual slide PDFs and rotate any landscape pages to portrait
  • Photo Albums: Turn a folder of JPG/HEIC photos into a single shareable PDF

Privacy-First PDF Merging

PDFs and images are merged entirely in your browser using pdf-lib and pdfjs-dist.

  • Your documents never leave your device — critical for confidential contracts, financial records, medical scans, and legal documents
  • No server uploads, no cloud processing, no third-party APIs
  • HEIC photos are decoded locally; metadata you set stays in the output PDF only
  • Works offline after the page loads

Related Tools

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Delete PDF Pages

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PDF to Image

Convert PDF pages to JPG or PNG images.

FAQ

Upload PDFs (and optionally images), reorder them, optionally pick specific pages and rotate them, then click Merge. All processing happens in your browser — files are never uploaded.
There's no hard limit, but very large files may be slow since processing happens in your browser.
No. All processing happens entirely in your browser. Your data never leaves your device — nothing is uploaded to any server.
Yes. Once the page has loaded, the tool works completely offline. For the best experience, install PrivaDeck as a PWA from your browser.
There are no server-imposed limits. The maximum number and size of files depends on your device's available memory. Most modern devices handle dozens of multi-hundred-MB files without issues.
Yes. Drop JPG, PNG, HEIC, WebP, or AVIF files alongside PDFs — each image becomes a single page in the output. HEIC photos from iPhones are decoded locally.
Expand any PDF in the list to see thumbnails. Click pages to toggle them on/off, and use the rotate buttons on each thumbnail to fix orientation before merging.
Yes. After merging, click "Show preview" to view the combined PDF directly in your browser without saving anything to disk.