Merge PDF files without uploading anything
This PDF merger combines multiple PDF documents into a single file directly inside your browser tab. There's no upload to a server, which means no waiting, no file-size anxiety about sensitive documents, and no account to create.
How to merge PDFs
- Drag and drop your PDF files into the box above, or click to browse.
- Reorder files by dragging any row (or its ⠿ handle) — page-count and a live thumbnail preview load automatically. The merge follows the order shown.
- Click Merge PDFs and the combined file downloads instantly.
Why merge locally instead of uploading?
Many online PDF mergers upload your files to a remote server for processing, which means your documents leave your device — a real concern for contracts, ID proofs or financial statements. This tool uses PDF-lib running directly in your browser, so the merge happens on your machine and the files never travel anywhere.
Is there a file size or page limit?
You can merge up to 30 PDFs at once. Because everything runs in your browser, very large files depend on your device's available memory rather than a fixed server-side limit.
Does merging affect PDF quality?
No. Pages are copied as-is from each source file, so text, images and formatting stay exactly as they were in the original documents.
Can I merge password-protected PDFs?
Files that are encrypted with a password may need that password removed first, since browser-based processing cannot decrypt protected PDFs without it.
Can I see how many pages each PDF has before merging?
Yes — once a file is added, its page count and a thumbnail of the first page load automatically, so you know exactly what you're combining and in what order.
Using this in a Central Government office
Most of the merging a Section or Under Secretary actually does is assembling enclosures. A single reference going up the channel typically carries the draft letter, the earlier OM being relied on, the relevant file noting extract and any annexures — and e-Office, like most departmental portals, wants one file, not seven.
Where this comes up
- Enclosure bundles for e-Office uploads — combine the DFA, the precedent OM and the annexures into one correctly ordered PDF before attaching to the file.
- LTC and TA/DA claims — boarding passes, tickets, the sanction order and the claim form usually have to go up as a single attachment.
- Pension and retirement paperwork — service book extracts, the nomination forms and the pension papers assembled into one document for the Bhavishya upload.
- Parliament and committee material — collating replies received from several divisions into one paginated document before submission.
Order matters more than you think
Reorder the files before merging rather than after. A merged PDF cannot be reordered here without merging again, and a bundle where the annexures precede the covering letter creates avoidable back-and-forth. Drag the rows into the order the reader should encounter them: covering note first, then the substantive document, then annexures in the order they are referred to in the text.
What this tool does not do
It combines pages as they are. It does not add page numbers across the merged bundle, does not create a bookmark index, and cannot merge a PDF that is password-encrypted until the password is removed. If you need continuous page numbering across a merged bundle — which most formal submissions expect — merge first, then run the result through the PDF Editor to add page numbers.