Image to PDF: https://tool.yuzhulin.com/image_to_pdf/
Image → PDF Converter

Easily merge and convert your image files into a single PDF document.

jpg to pdf:https://tool.yuzhulin.com/image_to_pdf/ ,
png to pdf: https://tool.yuzhulin.com/image_to_pdf/,

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? Supported Image Types

This tool currently primarily supports the following image formats for direct conversion:

JPEG (.jpg, .jpeg)

PNG (.png)

To ensure the best conversion results and compatibility, please upload images of these types. Other formats (such as WEBP, BMP, GIF, etc.) may not convert directly or may produce suboptimal results.

About PDF

PDF (Portable Document Format) is a file format developed by Adobe to present documents, including text formatting and images, in a manner independent of application software, hardware, and operating systems. Each PDF file encapsulates a complete description of a fixed-layout flat document, including the text, fonts, vector graphics, raster images, and other information needed to display it.

The main advantages of PDF include: maintaining document formatting consistency, cross-platform compatibility, security (can be password-protected and have permissions set), and suitability for printing and professional sharing.