How to use PDF Compressor
Choose a PDF and a quality level. Pages are rasterized in your browser and rebuilt as a new PDF. Text may no longer remain selectable. Select a PDF or supported image file, choose the page range or transformation settings when shown, and verify the generated document before downloading it.
What this PDF tool does
Create a smaller rasterized PDF by reducing page image quality and resolution. The goal is to handle common one-off PDF tasks in the browser without requiring a full PDF editor.
When this tool is useful
Use PDF Compressor for a focused document task such as rearranging output, extracting pages, converting page images, or preparing a copy for sharing. For important records, keep the original file and verify the generated PDF before distributing it.
How it works
Create a smaller rasterized PDF by reducing page image quality and resolution. CalcKitt uses browser-side PDF processing libraries for the transformation. Some operations manipulate PDF pages directly, while image-based conversion or compression may render pages and rebuild the output.
Practical example
For example, use a copy of a small PDF first so you can confirm page order, rotation, extraction range, or output quality before working with an important document.
Document notes
- Keep an untouched copy of the original PDF before editing or converting it.
- Complex forms, signatures, annotations, fonts, layers, or interactive features may not survive every transformation.
- Large PDFs can use substantial browser memory; verify the final document before sharing or archiving it.