Adobe Acrobat is probably the most professional way to convert an image to a PDF but it requires creating/signing into an account and paying a monthly fee – no thanks! I propose alternative ways to convert an image to a PDF depending what is available on your computer.

Method 1: Convert Image to PDF using MS Word

If Microsoft Word is available then the easiest method is to use Word and Export to a PDF. The easiest and highest quality method to convert an image (e.g., jpg, png, bmp, etc) to pdf is to use Microsoft Word. No need for external apps or websites.

Here is how to convert an image to PDF using Microsoft Word:

  • Set Layout -> Margins to 0.0 for all edges
  • Drop your image into the document.
  • Position the image into the center of the document by: Layout -> Position then select the center position.
  • Finally, export the PDF: File -> Export -> Create PDF/XPS Document -> Create PDF/XPS and in the save dialog click Optimize for: Standard (publishing online and printing) and under Options... check Optimize for image quality.

Method 2: Convert Image to PDF using LibreOffice

Similarly can convert a document to a PDF using the open source software LibreOffice.

Method 3: Convert Image to PDF using the web

Similar can be done with Google Docs too.

Method 4: Convert Image to PDF using the command line

ImageMagick can convert images (e.g., JPG, PNG, GIF, BMP, etc.) to PDFs and it does a fantastic job. First, Install the latest version ImageMagick. Next, from the command line call:

cd imageDirectory
magick input.jpg output.pdf

If you have multiple images:

magick input1.png input2.png output.pdf

or want to convert all of the same type in the directory:

magick *.png output.pdf

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