Merge Settings
File Order
Related Tools
About the PDF Merger
Merging PDFs is the most common PDF task in professional life: scanned pages + a typed declaration, invoice + purchase order + delivery note, three students’ assignment chapters into one submission. Doing it by hand means print-rescan loops; doing it on random free sites means uploading documents you would not hand a stranger. This tool merges PDFs entirely inside your browser — your files never leave your device.
Add any number of PDFs, drag to reorder them exactly as the final document should read, and check each file’s page count before committing. The merged output downloads instantly, with page order preserved byte-exact. Because the work happens in your browser via JavaScript, there is no upload wait on slow connections and no file-size cloud policy — the only limit is your device’s memory.
Security note worth repeating: contracts, ID proofs, and financial statements deserve local processing. Everything here runs offline-in-browser; close the tab and nothing remains.
How to use the PDF Merger
- 1 Click Add Files (or drop PDFs onto the page) to select two or more documents.
- 2 Drag the file cards into the exact order the merged document should follow.
- 3 Review page counts per file — remove or re-add anything unexpected.
- 4 Click Merge and download the combined PDF immediately.
Key features
Drag-and-drop ordering
Rearrange files before merging — the final document follows your sequence.
Page-count preview
See each file’s size and page count before committing to the merge.
Fully local processing
Files are read with the browser File API — nothing uploads, ever.
Instant download
No queue, no email-gate, no watermark on the output.
Who uses the PDF Merger?
- Assembling job applications: cover letter, CV, certificates in one file.
- Combining scanned ID proofs and photos for online form uploads.
- Students submitting multi-author assignments with a fixed chapter order.
- Accounts teams bundling invoices with PODs for monthly filing.
- Lawyers and CA-articles compiling annexures into a single exhibit.
Tips and best practices
- Order is easier to fix before merging than after — drag cards until the sequence reads like a table of contents.
- If one scan is sideways, rotate that source first; a merged file inherits each page’s existing orientation.
- Huge merges (hundreds of MB) depend on device memory; on older machines, merge in batches and combine the results.
- Scanned pages are images — the output inherits their size. Compress after merging if the file must pass a size-limited portal.
- Sensitive documents: this tool keeps them local, but remember any destination you upload to afterwards is a separate decision.
Frequently asked questions
No. The merge executes in your browser using the File and PDF APIs; your documents never leave the device.
There is no fixed limit — practical capacity depends on device memory. Desktops handle dozens of typical documents without effort.
Yes — drag the file cards into the desired sequence before merging; within a single PDF, the original page order is preserved.
No watermarks and no artificial caps — output quality equals the input files exactly.
After the page loads, the processing itself is local; you can disconnect and still merge files already selected.