SSublimePDF

All PDF Tools

Every tool you need to work with PDF documents. Free, fast, and completely private.

SublimePDF gives you 16+ professional PDF tools that run entirely in your browser. Merge, split, compress, convert, sign, edit, and protect your documents without uploading a single file. No registration, no watermarks, no limits.

PDF Tools FAQ

Which PDF tool should I use for my task?
Group your task by category. Merging, splitting, compressing, rotating? — Organize tools. Editing text, adding signatures, watermarks, or annotations? — Edit & Sign. Changing formats (PDF↔Word/Excel/JPG/HTML)? — Convert. Password protection, redaction, or unlocking? — Secure. Every tool page links to related tools so you can chain operations.
Can I combine multiple tools in one workflow?
Yes. A common flow is to merge several PDFs, then compress the result for email, then sign and protect the final file. Each tool downloads a standard PDF that you can immediately feed into the next tool — there's no lock-in or proprietary format between steps.
What file size and page count limits apply?
SublimePDF's browser tools have no hard file-size or page-count limits — the only ceiling is your device's available memory. Most modern laptops handle 200-300 MB PDFs comfortably; older phones and tablets may struggle with files above 50 MB.
How do SublimePDF tools differ from iLovePDF, Smallpdf, and Adobe Acrobat?
SublimePDF runs entirely in your browser via WebAssembly — your files never reach a server. iLovePDF and Smallpdf upload your files to their servers and rate-limit free use; Adobe Acrobat is a paid desktop install. SublimePDF stays free, private, and instantly accessible from any browser.