说明:
All-About-PDF is a fast, beautifully designed and intuitive PDF utility that you can use to merge, split, protect, compress, convert your PDF files and more. We strive to make our pricing straight-forward and offer great value.
Merge pdf, split pdf, convert pdf, protect pdf and much more. Privacy focused
As a desktop application, there is no need to upload your private PDF files to an unknown third-party remote server for processing. We also neither collect nor require your email address to use our application.
Pdf conversion
Batch convert your PDF files to several formats including Microsoft Word, Microsoft PowerPoint, JPG Image and HTML.
Fast pdf processing
All-About-PDF is a multi-threaded 64-bit application that utilizes your computer’s multiple CPU cores for blazingly speedy PDF processing.
Merge or split pdf files
All-About-PDF can take multiple PDF files and merge them into a single file. You can also go the other way by taking a single PDF file and splitting it into multiple documents. This is done by either specifying multiple page ranges to split by or you can simply tell the application to split the PDF every N pages (for example, you can split a PDF from pages 1 to 5 and 6-10 or just every 3 pages).
Protect pdf files
You can add Owner and User passwords to your PDF using 256-bit encryption. With an Owner password set on your PDF, you can specify user permission such as:
ability to copy from the document
ability to print the document
ability to annotate the document
ability to modify the PDF attributes
ability to modify the PDF contents and more
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