HiPDF vs PDFtk

HiPDF is an online PDF converter and document toolkit from Wondershare, a company founded in 2003 and based in Shenzhen, China. It converts files to PDF and PDFs to Word, Excel, PowerPoint, Pages, images, HTML, and text, among other listed formats. OCR can turn scanned PDFs into editable Word documents, and batch conversion is supported. The site also lists tools to edit, merge, compress, split, rearrange, protect, unlock, redact, sign, and share PDFs, and to extract images. AI tools include PDF chat, translation, proofreading, reading, rewriting, explanations, questions, mind maps, and AI detection. The free online converter works without installation for files up to 20 MB; paid plans list a 100 MB maximum. HiPDF says uploaded files are permanently deleted within 60 minutes after processing. Its pricing includes a free plan, Basic at $39.95 a year, and Advanced at $69.95 a year. A 7-day access option costs 0.95 USD once for Basic and 1.95 USD once for Advanced; each automatically renews after 7 days at its listed annual price.

PDFtk is a PDF toolkit from PDF Labs, available as graphical and command-line editions for Linux, macOS, Windows, and self-hosted deployments. PDFtk Free provides a graphical interface for merging and splitting PDF documents and pages, and includes the PDFtk Server command-line tool. PDFtk Pro adds splitting, merging, rotation, watermarks, stamps, and security controls for pages and documents. PDFtk Server handles command-line processing such as filling forms with X/FDF data, adding or updating bookmarks and metadata, attaching or unpacking files, and attempting repairs on corrupted PDFs. It can decrypt an input when its password is supplied and encrypt output. Pro can set opening passwords or restrict printing, assembly, copying, and editing. Server is free under GPL Version 2; commercial redistribution generally needs a separate license. PDF Labs lists Free and Server at free, Pro at $3.99, paid once, and a redistribution license at $995 as a one-time purchase. Products may create temporary local troubleshooting logs.