Compress PDF

Rebuilds your PDF with object streams and de-duplicated resources to bring the file size down. Text stays vector-sharp because nothing is re-rastered. Everything happens locally in your browser: nothing is uploaded, stored, or logged.

Known limitations

Structural compression only — it does not re-encode embedded photos, so image-heavy scans shrink less than text documents.

Loading engine

Compress PDF · client-side FFmpeg

FileForge is bringing FFmpeg entirely inside your browser tab — nothing uploads. Enable this tool by turning on cross-origin isolation in your deployment (see ffmpegwasm.netlify.app), or use the desktop CLI in the meantime.

About Compress PDF

Rebuilds your PDF with object streams and de-duplicated resources to bring the file size down. Text stays vector-sharp because nothing is re-rastered. Everything happens locally in your browser: nothing is uploaded, stored, or logged. This focused Compress PDF page is designed for people preparing PDFs for email attachments, portals, archives, and storage limits without flattening sharp text. It opens directly to the working tool, rather than hiding the function inside a general converter or account dashboard.

The PDF is parsed in memory by browser-loaded document libraries. Pages, text objects, images, and metadata are handled locally before a new download is assembled. Your filename and file contents stay on the device. There is no upload queue, temporary cloud copy, account record, or server-side conversion job to delete later. That makes the tool practical for personal records, work material, and drafts that should not be handed to an unknown processing service.

The important limitation is straightforward: Structural compression only — it does not re-encode embedded photos, so image-heavy scans shrink less than text documents. Knowing that boundary helps you choose the right source file and check the result before relying on it. Processing speed and maximum size depend on your browser and available device memory, which is the honest trade-off for doing the work locally.

FileForge charges nothing for this tool and does not add a watermark. Once the page and its processing engine have loaded, the operation can continue without sending the file over the network. Use the numbered steps below, download the result, and review it before replacing an original file.

How to use Compress PDF

  1. 1

    Open Compress PDF

    Stay on this dedicated Compress PDF page; no account, extension, or desktop installation is required.

  2. 2

    Choose your file

    Select or drop the file from your device. It is read by the browser and is not uploaded.

  3. 3

    Set the options

    Choose the output, range, quality, or formatting controls shown for Compress PDF.

  4. 4

    Run the tool

    Start the operation and keep this tab open while your browser processes the input locally.

  5. 5

    Check and save

    Review the result, then copy it or download the new file to your device.

Compress PDF FAQ

What does Compress PDF do?
Rebuilds your PDF with object streams and de-duplicated resources to bring the file size down. Text stays vector-sharp because nothing is re-rastered. Everything happens locally in your browser: nothing is uploaded, stored, or logged.
Who is Compress PDF useful for?
It is built for people preparing PDFs for email attachments, portals, archives, and storage limits without flattening sharp text.
Is Compress PDF free?
Yes. Compress PDF is free to use, needs no account, and adds no FileForge watermark.
Does Compress PDF upload my file?
No. The input is processed in browser memory on your device and is not sent to FileForge or a conversion server.
What are the limits of Compress PDF?
Structural compression only — it does not re-encode embedded photos, so image-heavy scans shrink less than text documents.
Can I use Compress PDF offline?
After this page and its processing library have loaded, the core operation can continue without uploading the input. Reloading the page may require a connection.
Which browsers support Compress PDF?
Current versions of Chrome, Edge, Firefox, and Safari are recommended. Media and unusually large files perform best on an up-to-date desktop browser.

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