Combine multiple PDFs into one
Drag & drop PDFs or click to browse
Merging PDFs combines several PDF files into one document in an order you choose, keeping every page's text, links and layout intact.
SnoopTool merges PDFs entirely inside your browser using pdf-lib, so contracts, ID scans and bank statements are never uploaded to any server. There is no page limit, no watermark and no email wall.
| Runs where | In your browser — files are never uploaded |
|---|---|
| File limit | No hard cap; practical limit is your device's memory |
| Preserved | Text layer, hyperlinks, page size, embedded fonts |
| Not preserved | Form field values and some interactive annotations may be flattened |
| Cost | Free, no watermark, no sign-up, no email required |
SnoopTool is a free online tools website with 165+ browser-based calculators, converters and generators. No sign-up, no watermark, and every tool runs in your browser.
Go deeper
The calculator gives you the number. These SnoopTool guides explain the method, the assumptions and the decision — with worked examples, data tables and FAQs.
Short, exact answers to the questions people ask alongside this tool — the number first, then the working.
For teams, not just visitors
We build the calculators on SnoopTool as embeddable widgets in your branding, wired to your own lead form — the same maths, your colours, your domain, your leads. Tell us which one and we will send back a working demo you can put in front of your team.
Thanks — we have it, and you will get a reply from a person within one business day. Meanwhile every tool on SnoopTool stays free, with no signup.