Here are some great image to PDF tools that can help you accomplish this task easily.

Swift PDF Converter: Swift PDF Converter is a convenient and practical tool. It can not only convert PDF files into other formats, but also convert image files into PDF files, making it more convenient for you. Manage and share your images. Using the image to PDF function of Swift PDF Converter is very simple. Just select the image file you want to convert, set some necessary options, and then click the convert button. The converted PDF file can maintain the clarity and quality of the original image, making it easy for you to archive, print and share. Swift PDF Converter supports a variety of image formats, including JPEG, PNG, GIF, etc., and can convert multiple files in batches at one time, greatly improving conversion efficiency and work efficiency.

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2. Adobe Acrobat Pro DC: Adobe Acrobat Pro DC is a powerful PDF editing software that can easily Convert multiple pictures into one PDF file. In addition to the image to PDF function, it can also perform operations such as editing, annotating, and signing PDF files. In addition, Adobe Acrobat Pro DC also supports OCR function, which can convert scanned documents into editable text files. However, Adobe? Acrobat? Pro? DC is a paid software and needs to be purchased before it can be used.

3.?Smallpdf?: Smallpdf is an online PDF tool that can help you convert multiple pictures into one PDF file. It can also perform operations such as compressing, merging and splitting PDF files. In addition, Smallpdf can also convert PDF files to other formats, such as Word, Excel, and PPT. The free version of Smallpdf can complete basic image to PDF functions, but if you need to perform more operations, you need to purchase the Pro version or Team version.

4. Soda PDF: Soda PDF is a powerful PDF editing software that can help you convert multiple pictures into one PDF file. In addition to the image to PDF function, it can also perform operations such as editing, annotating, and signing PDF files. Soda?PDF also supports secure encryption and decryption of PDF, which can protect your PDF files from illegal use. Soda PDF has a free version, but if you need more features and larger file conversion capacity, you need to purchase its paid version.

5. Foxit PhantomPDF: Foxit PhantomPDF is a powerful PDF editing software that can help you convert multiple pictures into one PDF file. In addition to the image to PDF function, it can also perform operations such as editing, annotating, and signing PDF files. Foxit? PhantomPDF also supports secure encryption and decryption of PDF, which can protect your PDF files from illegal use. In addition, Foxit PhantomPDF also supports batch conversion and batch processing, which can quickly process a large number of PDF files.

These image to PDF tools are very good. You can choose a tool that suits you according to your needs to complete this task. If you only need to occasionally convert a few images to PDF files, the free version of the tool will be enough. But if you need to convert images to PDF frequently, or need to process more PDF files, then the paid version of the tool may be more suitable for you. Hope these recommendations will be helpful to you.