CombinePDF vs HiPDF

CombinePDF creates one downloadable PDF from uploaded PDF files and images. It accepts PDF, JPG, JPEG, PNG, and BMP files, and lets users arrange the upload order before producing the result. Image pages and PDF pages can be mixed, while JPG, JPEG, and PNG collections can be compiled into a PDF. The service is free to use without registration or an email address and says it adds no watermark. Uploads are limited to 20 files at once, with each file up to 120 MB. Uploaded files and generated PDFs are deleted when the user leaves the page; its privacy policy says files are held temporarily during processing rather than permanently. Transfers use HTTPS. The service collects usage data such as browser type, access times, and pages viewed, and uses cookies for preferences and site analysis. It runs on web, Android, iOS, Linux, macOS, and Windows.

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.