One browser workspace
Page edits, markup, search, redaction, and export in one place—nothing to install.
Fast browser-based PDF workspace
Edit, organize, and export PDFs in minutes
Annotate, redact, reorder pages, merge or split, run signature requests, and share read-only links—all in your browser. No install, no plug-ins.
Included at a glance
- No install — runs in the browser
- Password-protected PDFs supported
- Guest mode to try first
- 100 MB storage on Free
- Request Sign — signers don’t need an account
- View-only share links
See it in the workspace
Editor, Request Sign, and file library—this is the same in-browser workspace you get after you sign up.
Markup, redaction, signatures, and page tools on the canvas.
Place fields, invite signers, and track completion from one place.
Folders, versions, and storage at a glance on the dashboard.
Request Sign
Email signers, place fields, send private links (no OtterPDF account needed). Get a flattened PDF and read-only link when everyone’s done.
View-only links
Optional read-only URLs from your library—separate from Request Sign signer links.
Secure unlock
Password-protected PDFs stay locked until you enter the password—safer for sensitive files.
Storage at a glance
Dashboard and Files show usage. Uploads, versions, and completed signed PDFs count toward your quota.
Folders & activity
Color-tagged folders, bulk moves, trash and restore, plus an activity log for recent actions.
Signatures in the editor
Upload or draw a signature and place it on the page without leaving the document.
Merge, split, reorder
Combine PDFs, split by page ranges, and reorder pages from the editor workflow.
Print & export
Download from your library; print the secured original or your edited PDF after unlock.
How it works
1) Upload
Add one or multiple PDFs and open them instantly in your browser.
2) Edit & collaborate
Annotate, redact, sign, reorder, search—or start Request Sign and share links when you’re ready.
3) Export & deliver
Save versions, download PDFs, and share read-only copies when signing completes.
Who uses OtterPDF
Teams handling forms, contracts, labels, and reports who need quick edits without heavy desktop software.
- Operations teams handling daily PDF workflows at scale
- Support teams preparing clear customer-ready documents
- Small businesses standardizing secure browser-based editing
Start in under a minute
Create a free account to keep files and versions, or try guest mode first and decide later.