iLovePDF
All-in-oneFreemium
The most complete free web suite: merge, split, compress, convert Office⇄PDF, watermark, rotate, unlock and sign.
Visit iLovePDF →Home / PDF Tools
Free PDF Tools
Merge, split, compress, convert and e-sign PDF files without buying Acrobat. These free tools cover 95% of everyday PDF work.
PDF24 Tools
All-in-oneFree
100+ PDF tools with no meaningful daily limits in the browser, plus a capable free Windows desktop app for offline work.
Visit PDF24 →Smallpdf
All-in-oneFreemium
Clean, fast and friendly — compress, convert and e-sign with a rotating set of free daily tasks.
Visit Smallpdf →Sejda
PDF EditingFreemium
Actually edits PDF text in place — not just annotations. Merge, sign and split with a free quota of 3 tasks per hour.
Visit Sejda →Stirling PDF
Self-hostedFree · Open Source
A privacy-first, self-hosted PDF toolbox with 50+ operations — everything stays on your own machine.
Visit Stirling PDF →PDFescape
FormsFree
Fill in and annotate PDF forms in the browser — the quick fix when someone sends you a non-fillable form.
Visit PDFescape →Adobe Acrobat Online
Convert · SignFree Tools
Adobe’s official free online tools — converters, compressor and e-signatures with perfect fidelity to the PDF spec.
Visit Adobe online →Explore more
Read the deep dive: the 7 best free PDF tools of 2026, or browse every category in the tool directory.