PDF editing has always been the weak spot of the format. Adobe's official editor is expensive and heavy, web alternatives tend to flatten your edits into low-resolution images, and most free desktop tools cannot handle signatures cleanly. The PDF Editor hub on Ai2Done brings together the editor workflows that real users actually need — text insertion, signatures, page reordering, page rotation, cropping and selective deletion — and runs them all inside a Fabric.js canvas overlaid on a PDF.js render of your file.
For day-to-day work, the most valuable flow is the e-signature tool. You upload a PDF, draw or type a signature, position it anywhere on the page, and export a fully self-contained signed document. The signature is rendered as an embedded vector path so it survives further compression or printing without artifacts. The add text flow lets you fill in scanned forms, annotate technical drawings or insert page numbers; you control the font, size and colour and can preview the result before committing.
Page-level operations are equally polished. Rearrange Pages shows you a draggable thumbnail grid for visual reordering, Delete Pages lets you remove pages individually or by range, Rotate PDF applies 90/180/270-degree rotation per page, and Crop PDF trims margins to remove scanner shadows or fit your content into a different paper size. All of these operations preserve the original PDF's text layer, links and embedded fonts where possible, so downstream tools (search, screen readers, OCR) keep working.
Because editing happens entirely in the browser, you can comfortably work on confidential contracts, medical records or HR documents that you would never upload to a cloud editor. Each tool has a one-click reset so you can experiment without fear, and the underlying runtime supports files into the hundreds of megabytes on a typical laptop. Combined with our Security hub for passwords and watermarks, this collection covers the entire lifecycle of an internal PDF document.
Newcomers can start with the editor for signing contracts, the rearrange tool for assembling a clean deliverable, or the rotate/crop tools for cleaning up phone-scanned pages. Power users will appreciate that the tools chain naturally: edit → rearrange → compress → sign, all without leaving the browser tab. Every output is a clean, well-formed PDF that opens identically in Acrobat, Preview, Chrome and any modern PDF viewer.