Compress PDF

Significantly reduce the file size of scanned PDF documents without noticeable loss of quality.

Install

To install the compress-pdf

You can quickly run the project with the following command:

swift run compress-pdf [--replace-files] [--suffix <suffix>] [<files> ...]

You can build compress-pdf for release like so:

swift build --configuration release

Usage

• compress-pdf is particullarly effective for documents that were scanned with iPhone.
• Move a scanned PDF document to your computer and run this command in your Terminal:

compress-pdf [--replace-files] [--suffix <suffix>] [<files> ...]

ARGUMENTS:
  <files>                 The PDF files to compress.

OPTIONS:
  -r, --replace-files     Replace original PDF files.
  -s, --suffix <suffix>   Set file suffix added to copied PDF files. (default:  (compressed))
  -h, --help              Show help information.

• This command compresses a copy of the original input.pdf and saves it in the file named input (compressed).pdf.

Examples

• Take a look at the size of three example PDF files and the size of compressed PDF files generated with compress-pdf below:

Original File	Compressed File	Percentage Decrease (Bytes)
01-scanned-document.pdf (9.5 MB)	01-compressed.pdf (329 KB)	96.554%
02-scanned-document.pdf (12.1 MB)	02-compressed.pdf (429 KB)	96.459%
03-scanned-document.pdf (9.1 MB)	03-compressed.pdf (312 KB)	96.552%

Note: all documents were scanned in the Files iPhone app.