Stamp a watermark across a whole folder of PDFs at once — each processed in your browser and packaged into one ZIP. Nothing is uploaded.
or drop files / a folder here
// Benefits
Stamp the same watermark across a whole folder of PDFs in one run.
Apply the same text or image watermark to every page of every PDF in the folder — no opening files one by one.
Set the position, size, opacity, and angle once and it lands identically across the whole batch.
All watermarked PDFs come back in a single ZIP, ready to share or archive.
// Workflow
For the moment a folder of drafts, proofs, or confidential files all need the same stamp before they go out.
Drop a folder of PDFs onto the page.
Design the watermark — text or image, position, opacity.
Run and download the watermarked PDFs as one ZIP.
// Recommended reading
Related tools for watermarking and numbering documents.
Drag a folder (or several PDFs) onto the upload box, or click to pick files. Type your watermark text — for example CONFIDENTIAL — then click "Apply to all". Each PDF is stamped one by one, and when it finishes you click "Download ZIP" to get every watermarked file in a single archive. If you dropped a folder, any non-PDF files inside it are filtered out automatically, so you don't have to clean the folder first.
No. Every PDF is processed entirely in your browser, on your own device — nothing is uploaded to any server, and there's no account or sign-in. Your documents never leave your computer, which is exactly why it's safe for confidential files.
You get one ZIP file (dockdocs-batch.zip) containing all the watermarked PDFs. Each output keeps its original name with a "-watermarked.pdf" suffix — so report.pdf becomes report-watermarked.pdf. Your original files are left untouched.
This batch tool processes up to 30 PDFs per run. If you add more, only the first 30 are kept. There's no fixed file-size cap — since everything runs in your browser, the real limit is your device's memory, so very large files or weak machines will simply be slower. For a bigger job, split it into batches of 30.
Yes, it's completely free with no signup, no trial, and no usage limits beyond the 30-files-per-run batch size. The only watermark on your PDFs is the text you type — DockDocs never stamps its own logo or branding onto your files.
Not in the batch tool. It uses a fixed default placement — a diagonal watermark across each page — to keep the whole folder consistent. If you need a custom position, opacity, or font size, use the single-file Watermark tool instead, which gives you full control over one document at a time.
This tool runs entirely in your browser. Your file never leaves your device — it isn't uploaded to any server.
Check for yourself: open your browser's developer tools (F12, or right-click → Inspect) → the Network tab → then run this tool. You won't see your file uploaded anywhere, because the work happens locally on your device.