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PDF compression — reduce file size

Upload a PDF and we'll shrink its size while preserving quality. Choose the compression level yourself — free, with no install or sign-up. Up to 100MB.

🗜️ Max 92% Minify

🔒 freesign.kr
① 큰 PDF
② 압축 적용
③ 용량 감소
계약서_스캔본.pdf · 8.2MB
이메일 첨부가 안 될 만큼 용량이 너무 커요
표준 (텍스트 선명) ✓
강력 (이미지 변환)
PDF 압축하기
⟳ 압축 중…
방식 선택 → 파일 업로드 → 버튼 클릭
8.2MB2.1MB-74%
⬇ 압축된 PDF 다운로드
품질 유지하며 용량 최대 92% 절감
Compression method
Compression level

The stronger the setting, the smaller the file, but quality may drop. We usually recommend "standard."

.pdf · Max 100MB

Uploaded files are deleted from the server right after compression and not retained. (Any leftover files are auto-cleared within a day.)

About this tool

  • by downsampling and re-encoding the images inside the PDF Reduces file size. PDFs with many scans or photos can be reduced by up to 92% in size. Useful for email attachments and upload limits.
  • Three compression levels: Light (high quality) · Standard (recommended) · Strong (smallest size).
  • Strong (image-conversion) method: For text-only PDFs that standard compression barely shrinks (property registers, contracts, etc.), this method converts each page into an image and reassembles them into a PDF (PDF→JPG→PDF), greatly reducing the size. Text search won't work, but the size savings are large.
  • Free, no install or sign-up. Up to 100MBare supported.
  • Uploaded files are deleted immediately after processing and not kept on the server.
  • Password-protected PDFs are not processed for security reasons — remove the password first.

Jachwi Solution · CEO Cheolmin Jung · Business Reg. No. 402-38-30417 · 5-3, Sapyeong-daero 52-gil, Seocho-gu, Seoul

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