PDF Compressor

Image & Design Tools

PDF Compressor

Optimize a local PDF with object stream, raster JPEG, or hybrid text-preserving compression.

Tool guide

Before you start

Optimize a local PDF with object stream, raster JPEG, or hybrid text-preserving compression.

Category
Image & Design Tools
Processing
Input is processed in the browser.
Example
Optimize a local PDF with object stream, raster JPEG, or hybrid text-preserving compression.

Input / output

0 Choose files0 full documentcompressed.pdf size

Processed safely in this browser. Files are handled only on your device.

1. Add files

Added files (3)

1

proposal_2024.pdf

1.2 MB · 12 pages

sample
2

contract_sample.pdf

2 MB · 18 pages

sample
3

report_appendix.pdf

1.7 MB · 14 pages

sample

Drag files to change the order and page count.

2. Page preview (44 pages)

Selection settings

3. Result summary

Selected pages

Change

1-44

Add files to preview the output plan.
files: 0
total size: 1 KB
compression: object streams
metadata cleanup: enabled
limits: image streams are not re-encoded / encrypted PDFs must be unlocked first / some PDFs may become the same size or larger
파일은 서버로 업로드하지 않습니다.
큰 PDF는 브라우저 메모리를 많이 사용할 수 있습니다.
Add files, then run the selected PDF task.

Expected result

File name
compressed.pdf
Expected size
~ 4.35 MB
Pages
44 pages
Files
3 files

Notes

File order is preserved.

Secured PDFs are not unlocked automatically.

Large files may take longer.

The sample output is ready for preview.

Compress PDF settings

Choose object stream or image recompression.

Operation options

압축 모드

문서 구조를 보존하는 object stream 모드와 스캔 PDF용 래스터 JPEG 모드를 선택합니다.

Object stream 재저장

PDF를 object stream 형식으로 다시 저장해 구조를 최적화합니다.

래스터 JPEG 재압축

각 페이지를 이미지로 렌더링해 JPEG 품질로 다시 묶습니다. 스캔 PDF에 적합합니다.

혼합 스캔 페이지 압축

텍스트 레이어가 있는 페이지는 원본 구조를 보존하고 텍스트가 없는 스캔 페이지는 JPEG로 재압축합니다.

Embedded image 감사

PDF 내부 이미지 XObject 후보를 로컬로 세어 object stream, hybrid, raster 모드 선택 근거를 보여줍니다.

메타데이터 정리

선택 시 제목, 작성자, 주제, 키워드 같은 문서 메타데이터를 비웁니다.

JPEG 품질

래스터 JPEG 모드에서 페이지 이미지 품질을 30~95% 범위로 조절합니다.

압축 한계

object stream 모드는 이미지를 재인코딩하지 않고, 래스터 JPEG 모드는 텍스트와 벡터를 이미지화합니다.

Embedded image audit

embedded images0

JPEG/DCT · JPX · Flate0 · 0 · 0

next best modeobject-stream

파일을 선택하면 PDF 내부 이미지 XObject 후보를 브라우저에서만 검사합니다.

HelpOpen usage notes, examples, practical tips, and FAQ only when you need them.

What is this tool?

PDF Compressor is a browser-first tool for optimize a local PDF with object stream, raster JPEG, or hybrid text-preserving compression. It fits into the image and design workflow and keeps the main task on one page.

How to use it

  1. Enter the input

    Paste or edit the value in the input area. Sample values are safe placeholders for testing the tool.

  2. Adjust options

    Choose the mode, format, unit, or count that matches the compress PDF, PDF optimizer, hybrid PDF compression task.

  3. Review the result

    Run the tool, inspect the output, then copy or download it only when the result matches your expectation.

Examples

PDF Compressor example

Input
Sample input
Output
Review the result in the browser.

Practical tips

  • For large inputs, process the smallest useful sample first to keep the browser responsive.
  • Ad slots are intentionally kept away from tool controls and result panes.

FAQ

What input should I use with PDF Compressor?

Use values that match the compress PDF, PDF optimizer task, then adjust the visible options before running the tool.

Can I copy the PDF Compressor result?

Yes. Review the output first, then copy or download it when the result matches your expectation.

Can I use PDF Compressor on mobile?

Yes. The input, options, action, and result areas are designed to stack cleanly on small screens.

Will ads interrupt PDF Compressor?

No. Ad slots stay outside the input, output, and primary action areas so the tool remains usable and policy-safe.

Tools to Use Together

PDF Metadata RemoverPDF WatermarkPDF Crop