Utilore

Compress PDF

Two honest ways to shrink a PDF: rebuild the file and keep the text intact, or re-render the pages as images when the document is a scan and size matters more than selectable text.

or drop them here

    How to use

    1. Choose the PDF file or drag it onto the box.
    2. Pick a mode: keep the text, or squeeze hard by turning pages into pictures.
    3. For the strong mode, choose the level of detail — 110 dpi suits reading on screen, 150 dpi still prints well.
    4. Press Compress PDF and download the result. The tool shows the size before and after.

    Good to know

    Keep the text: a rebuild, not a squeeze

    This mode rewrites the file structure, drops unused objects and packs the rest into object streams. Text, fonts, links and vector graphics are untouched, so the document stays a document. The saving is usually modest — a well-made PDF is already tight, and the tool says so instead of pretending.

    Squeeze hard: pages become pictures

    Every page is drawn at the chosen resolution and stored as a JPEG. For scans and photo-heavy presentations this is where the real savings are — often several times smaller. The cost is real too: the text becomes part of the image and can no longer be searched, selected or copied.

    Which mode to use

    Reports, contracts and anything you will search through: keep the text. Scans of paper, photographed documents, slide decks exported to PDF, and anything that only needs to be readable and small enough to email: squeeze hard.

    Frequently asked questions

    Is my file uploaded to a server?

    No. The whole thing runs in your browser and the PDF never leaves your device.

    How much smaller will the file get?

    It depends on what is inside. Scans usually shrink several times in the strong mode; a text-only PDF may barely change, and the tool tells you when nothing was gained.

    Will I still be able to select the text?

    Yes in the mode that keeps the text. No in the strong mode — pages become images, and that trade-off is stated before you start.

    Why did the size stay the same?

    Because that file was already packed efficiently. Rebuilding removes waste, and a PDF exported by a modern program often has none.

    Can I compress a password-protected PDF?

    Only if it opens without a password. Unlock it first in a PDF reader, then compress.

    Does compression change the page size?

    No. Pages keep their original dimensions in points, so printing and page numbering stay as they were.

    Related tools