Category 02 · PDF

Merge, split, protect. Everything runs locally.

Combine, split, compress, redact, encrypt, rotate, number pages, watermark — every common PDF task, all running locally in your browser. The cryptography and processing happen on your machine.

11
PDF tools
AES-256
Local encryption
0 KB
Uploaded
2,847
Daily merges
In →
PDF PDF/A Encrypted PDF Forms Signed PDF Scanned PDF
→ Out
Most-used · 2,847 / day

Merge PDFs without losing hyperlinks, bookmarks, or form fields.

Drag any number of PDFs onto the dropzone. Reorder by drag, delete pages you don't want, choose your bookmark policy, save. Outline trees, named destinations, form fields, and digital signatures survive intact.

  • Preserves bookmarks, outlines, links, form fields
  • PDF/A-2u compliant output for archival
  • Zero bytes uploaded — even for encrypted files
Merge PDFs now
A.pdf
B.pdf
C.pdf
PDF
MERGED · 28 PAGES
contract-final.pdf
1.84 MB · Outline preserved
11 PDF tools · all local

The complete document toolkit.

All · 11 Organize Secure Optimize Edit
01 / 11 ★ Top

Merge PDF

Combine many PDFs into one. Reorder, delete, keep bookmarks and form fields intact.

Open
02 / 11

Compress PDF

Re-encode embedded images, downsample, subset fonts. Three quality presets, custom dial.

Open
03 / 11

Split PDF

Extract pages by range, every N pages, or split on bookmark boundaries.

Open
04 / 11 Trending

Protect PDF

AES-256 password encryption via WebCrypto. Permissions: print, copy, edit, annotate.

Open
05 / 11

Unlock PDF

Remove the password from a PDF you own. Decryption happens locally — we never see the key.

Open
06 / 11

Redact PDF

Permanently remove text, names, faces. We delete the data, not just paint a black box over it.

Open
07 / 11

Watermark PDF

Text or image overlay on every page. Diagonal, tile, opacity, page range, behind/above content.

Open
08 / 11

Add Page Numbers

Numbers, roman numerals, "Page X of Y". Position, font, size, starting page, skip ranges.

Open
09 / 11

Rotate PDF

90° / 180° / 270° per page or per range. Lossless metadata rotation, no re-render.

Open
10 / 11

Delete Pages

Remove pages by range or visual selection. Live preview of every page as a thumbnail grid.

Open
11 / 11

Reorder Pages

Drag thumbnails to a new order. Undo/redo per move. Save the rearranged file or as a copy.

Open
k·

Used by lawyers, accountants, students, journalists.

Your documents stay on your machine throughout. We don't have a server endpoint for PDFs — not for processing, not for logging.

2,847
Merges / day
−72%
Avg. size cut
0
Server reads
Common questions

What you should know before merging a contract.

Can I trust local PDF tools with a signed legal document?
More than upload-based ones — your document never traverses a network. We use pdf-lib and PDF.js compiled to WebAssembly. Digital signatures, certifying signatures, and timestamps are preserved when merging, splitting, or rotating; you'll see a warning if a transformation invalidates a signature (e.g. editing form values).
Does "Protect PDF" actually encrypt, or just paint a lock icon?
Actually encrypts. We use AES-256 via the WebCrypto API to encrypt the content streams and the cross-reference table. Owner-password permissions (no-print, no-copy) are also enforced cryptographically by setting the matching permission flags in the encryption dictionary.
How does "Redact" differ from drawing a black rectangle?
A black rectangle in most tools sits on top of the original text — copy-paste still leaks it. Our Redact tool removes the affected text from the underlying content stream, rasterizes images in the redacted region, and clears related metadata. The data is gone, not hidden.
What's the max number of PDFs I can merge at once?
No imposed limit. We've merged 240+ files into a single 1,800-page PDF in a Chrome tab. The practical ceiling is browser memory (around 2 GB on desktop). For very large jobs, work in batches and merge the intermediate outputs.
Do you keep my unlocked PDFs in any cache?
No. Decryption happens in memory only. When you close the tab, the JavaScript heap is reclaimed and the decrypted bytes disappear. Nothing is written to localStorage, IndexedDB, or the service-worker cache.
AES-256 local · 0 uploads · 0 accounts

Your documents stay yours.

Eleven PDF tools. All running locally in your browser — no server involved. Try the one you need, bookmark the rest.

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pdf-lib + WebCrypto No watermark No limit