CombinePDF vs DoKit

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.

DoKit is a web-based document toolkit for processing PDFs and converting documents to and from PDF. Its tools merge, split, compress, protect, and unlock PDFs. Merge accepts PDF, JPEG, DOC, PPT, XLS, and TXT files, combines them into one PDF, and lets users set their order. Split can extract pages into separate files or divide a PDF into equal-sized chunks. The Eco tool converts documents to grayscale and smaller paper sizes for printing. DoKit runs online without requiring software installation. Free visitors and free registered users can use the service, alongside paid Premium accounts; the terms say functionality may vary by user type. Uploaded files are automatically deleted by default after 15 minutes for merge, split, and compress operations, 24 hours for PDF edits, and 60 minutes for other files. DoKit says tool pages use SSL and do not store files, while its terms reserve access to uploaded content for fraud prevention, technical issues, service improvement, or support. The provider is Fundacja Otwarte Państwo in Warsaw, Poland.