Exact-size PDF compressor

Compress PDF to Exact Size Online Free

Exact-size compressor — not a vague Low/Medium/High slider. Default 200 KB; change the preset.

Drop a PDF here or tap to browse · max 50 MB · target 200 KB

No file-count paywall
Auto-delete in 1 hour
No watermark
Works on any device

How it works

1
Upload

Drop the file. We check the type before processing.
2
Process

The matching engine runs in this request on the server.
3
Download

Grab a time-limited link. The copy is deleted within an hour.

Exact size is the product differentiator

Portals reject 210 KB when the cap is 200 KB. Pick the preset that matches the notice. Homepage twin: Compress PDF.

What you get

Mobile first

Large tap targets and a one-column upload on phones.

Auto-delete in 1 hour

Files sit outside the web root and are purged on a schedule.

No watermark

The download is your file. We do not stamp pages unless you asked for a watermark tool.

Known-password unlock only

Unlock decrypts with the password you type. We do not crack Aadhaar, passbooks, or bank files.

Hostinger-ready

Converters and page tools run in PHP on shared hosting. No VPS required for the tools we publish.

Then compress

After convert or unlock, hit an exact KB cap for SSC, UPSC, and job portals.

CompressPdfs Online vs other PDF tools

Feature	CompressPdfs Online	iLovePDF	Smallpdf	Adobe Acrobat
Exact KB/MB target	Yes — 50 KB to custom	Quality presets, not exact KB	Quality / compression level	Reduce Size / PDF Optimizer (paid)
Unlock without password	No — known password only	Varies by tool/plan	Varies by tool/plan	Needs the open password
Signup required	No	Not for basic tools	Not for basic tools	Adobe ID for cloud
File retention	Deleted after 1 hour	Temporary (vendor policy)	Temporary (vendor policy)	Cloud storage if you use Document Cloud

Competitor rows describe publicly advertised behaviour at a high level. Plans change.

Frequently asked questions

How do I use Compress PDF exact size online?

Upload on this page, wait a few seconds, and download the result. No signup.

Is it safe to upload my file here?

Uploads are stored outside the public web root, addressed by unguessable names, and deleted automatically after one hour. Download links expire so a leaked URL stops working.

Does this work on a phone?

Yes. The layout is one column on mobile with a 44px tap target for upload and download.

Is this a different tool from the main converter?

The converter itself is the same one in Convert Tools, PDF Tools, or Sign & Secure. This page is written for this file type and use case — password handling, size limits, and what the download contains — so you know what will happen before you upload.

Can I compress after converting?

Yes. Open Compress PDF and pick the KB cap printed on your form.