Compress PDF to 300KB
Clear job-portal upload limits — compress to 300KB in seconds, free, processed locally in your browser.
12M+
PDFs compressed
90%
Average size reduction
<5s
Average compression time
0
Files ever uploaded
How to compress a PDF to 300KB
Three steps, no account, no upload — done in under five seconds.
Select your PDFs
Drop one or more files or click to browse. Works on phone, tablet, and desktop — no app to install.
Auto-compress in browser
Images in your PDF are selectively downscaled to reach 300KB, keeping your resume layout and fonts pixel-perfect.
Download
Save your compressed PDF instantly. No watermarks, no email, no waiting.
Everything you need to compress a PDF online
A complete, free PDF compressor that works in any browser — no software to download, no account to create.
Batch compress PDFs
Drop several PDFs at once and compress them in bulk. No daily cap, no per-file limit — shrink an entire folder in one go.
Works on every device
Compress PDFs on Windows, Mac, Linux, iPhone, and Android. Anything with a browser works — no app install required.
No watermarks
Your compressed PDF comes out clean — no logos, no stamps, no added pages. It looks exactly like the original, only smaller.
100% private & secure
Files are processed locally in your browser and never uploaded. Nothing is stored on a server — your documents stay yours.
Lightning fast
No upload and download round-trip means compression starts instantly and finishes in seconds, even on slow connections.
Free & unlimited
Compress as many PDFs as you want, as often as you want. No signup, no free-trial countdown, no hidden paywall.
Why compress PDF to 300KB?
Job portals like Naukri, LinkedIn Easy Apply, and company HR portals commonly cap resume and CV uploads at 300KB. Compressing to that size ensures your application is accepted without extra back-and-forth.
Compress without losing quality
Smart compression downsamples only what's needed — text stays crisp and selectable, images stay readable. You get a dramatically smaller file that still looks right on screen and in print.
Your files never leave your device
There are no uploads — compression runs fully client-side in your browser. Nothing is sent to a server, nothing is stored. Your documents stay 100% private, always.
Compress PDF to any target size
Hitting a strict upload limit? Pick the exact size you need and we'll compress your PDF to fit.
What people compress PDFs for
A smaller PDF goes through wherever there's a size limit. Here's where it helps most.
Email attachments
Beat Gmail, Outlook, and Yahoo attachment caps so your PDF actually sends instead of bouncing back.
Job applications & resumes
Fit your CV, cover letter, and portfolio under the upload limit on LinkedIn, Workday, and job boards.
Government & visa forms
Meet the strict KB limits on passport, visa, tax, and government portals that reject oversized files.
Online upload portals
University, exam, and registration sites often block large files — compress first and upload in one try.
Sharing on chat apps
Send PDFs over WhatsApp, Telegram, and Messenger faster — smaller files download in an instant.
Storage & archiving
Keep years of invoices, contracts, and scans without filling your drive or cloud storage quota.
More free PDF tools
Everything runs in your browser — private, free, and no signup, just like the compressor.
Loved by students, job seekers & professionals
Thousands of people compress a PDF here every day. Here's what a few of them say.
“The visa portal kept rejecting my 4MB scan. Compressed it here in seconds and it uploaded first try.”
“I batch-compress every resume before applying. No watermark, no signup, and the text stays perfectly sharp.”
“As an accountant I send dozens of PDFs a week. Knowing files never leave my browser is exactly what my clients need.”
Frequently asked questions
Will my resume formatting survive compression to 300KB?
Yes. Text, fonts, and layout are fully preserved. Only embedded photos or graphics may have slightly lower resolution, which is unnoticeable in most resume designs.
Is my PDF safe? Does it get uploaded anywhere?
Your file never leaves your device. Compression runs entirely in your browser using WebAssembly — nothing is sent to any server.
Is it really free?
100% free — no signup, no watermarks, no hidden limits. The tool is supported by light ads only.
Does it work on mobile (iPhone and Android)?
Yes. Open the page in Chrome or Safari on any phone or tablet. No app download required — tap to select your PDF and download the result.
Can I compress multiple PDFs at once?
Yes. You can select several PDFs at once and compress them together with no daily cap — it's unlimited and free.
Can it compress scanned PDFs?
Yes. Scanned PDFs are image-heavy, so they compress well. The tool reduces image resolution and strips redundant data while keeping the document readable.