Shrink your PDF just enough to upload
Compress to 100KB / 200KB / 1MB in one click to beat exam, visa and government-portal size limits. Merge, split, convert and watermark too — and chain steps into a reusable automation workflow.
Drop it in, one meow and it's small
Free · instantCommon cases: exam sign-up ≤200KB, visa documents ≤1MB, government portals ≤500KB
This tool usesrasterizationto compress, which is best forscanned / photo-based PDFs. A text-only PDF becomes an image after compression, so youcan no longer copy or search the text — if you need selectable text, don't use this tool on a pure-text document.
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What is PDF compression?
PDF compression reduces a PDF's file size by re-encoding page content and down-sampling its images. Exam-registration, visa-application and government portals often cap uploads at 100KB–1MB, and compression lets oversized scans, ID photos and contracts fit those limits while keeping them as sharp as possible. compress cat does it right in your browser — no upload, free, instant and private — and converges on the target size you set (such as 200KB) automatically.
PDF compression guides.
Shrink it just enough to uploadA litter of PDF tools.
All run in your browserCompress PDF
Squeeze a PDF down to 100KB, 200KB or 1MB so it finally clears the upload box.
Merge PDF
Drop several PDFs in, set the order, export one file. Lossless.
Split PDF
Break one multi-page PDF into a file per page, then grab just the pages you want.
Rotate PDF
Scanned it sideways? Straighten the whole thing and export.
Image to PDF
A pile of images, packed into one PDF.
Add watermark
Stamp text like CONFIDENTIAL across every page.
Delete pages
Drop the pages you don’t want — blanks, misscanned sheets, extra appendices — and keep the rest. Ranges like 2, 5-7 work.
Sign PDF
Draw or upload a signature, click the page to place it, stamp. Built for the sign-it-and-send-it-back rhythm of contracts and forms.
Add page numbers
Stamp a number on every page — styles like “1 / N”, “Page 1” or “- 1 -”, header or footer, starting from any number you set.
PDF to Word
Pull the text out of a PDF into an editable Word (.docx) you can keep working in.
PDF to PPT
Turn a PDF into PPT (.pptx): editable text, or an image-per-slide mode with 100% visual fidelity.
OCR (searchable PDF)
Add a text layer to scanned / image-based PDFs so they’re searchable, selectable and copyable (Chinese & English).
PDF to Excel
Pull tables out of a PDF into an editable Excel (.xlsx). Works best on clean tables.
Office to PDF
Convert Word, Excel and CSV files to PDF so they open and print the same anywhere.
Edit PDF
A visual markup tool to add text, white-out and redaction to a PDF (it can’t change existing text).
Chain single tools into one automated pipeline
Pick a template → set parameters → run a whole batch in one click, and save it on your device to reuse. Define it once, skip the manual clicking every time.