[ Comparison ] 8 Online PDF Compressor And Optimizer

Here is the complete list of the 10 best online pdf compressors. If you ever wonder which is the best online PDF compressor that does the best job in preserving the image quality while maintaining readability, look no further. We’ve compiled a complete list of some web applications and their performance.

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We’ve tested these free services with 3 different PDFs – Texts, Diagrams and Images. This site lets you optimize and compress PDF files to decrease file size, e.g. when you wish to save bandwidth or fit the file within email attachment file size limits. With this tool, You can upload and optimize multiple files at the same time (batch processing).

PDF optimizer will not change the resolution of your files. If you need to further reduce the file size and you can afford to lose the quality, try PDF resizer instead. PDF files can be created in many different ways, they can consist of images, text and formatting information in any proportion, so the results from using their optimization and resizing tools may vary heavily from one file to another.

1. SmallPDF

No Bulk | No Preset | Average 15% Smaller

• Text only [ 52KB Original | 47KB Compressed ] Smaller by 9.6%
• Text + Diagrams [ 509KB Original | 354KB Compressed ] Smaller by 30%
• Text + Image [ 3.6MB Original | 3.4MB Compressed ] Smaller by 5.5%

2. DocuPUB

No Bulk | 4 Preset | Average 13% Smaller

• Text only [ 52KB Original | 50KB Compressed ] Smaller by 4%
• Text + Diagrams [ 509KB Original | 339KB Compressed ] Smaller by 33%
• Text + Image [ 3.6MB Original | 3.5MB Compressed ] Smaller by 1%

3. Very PDF

No Bulk | 2 Preset | Average 35% Smaller

• Text only [ 52KB Original | 52KB Compressed ] Smaller by 0%
• Text + Diagrams [ 509KB Original | 447KB Compressed ] Smaller by 12%
• Text + Image [ 3.6MB Original | 1.5MB Compressed ] Smaller by 58%

4. PDF Compression

Yes Bulk | No Preset | Average 30% Smaller

• Text only [ 52KB Original | 44KB Compressed ] Smaller by 15%
• Text + Diagrams [ 509KB Original | 312KB Compressed ] Smaller by 38%
• Text + Image [ 3.6MB Original | 2.3MB Compressed ] Smaller by 37%

5. I Love PDF

Yes Bulk | 3 Preset | Average 23% Smaller

• Text only [ 52KB Original | 49KB Compressed ] Smaller by 5.7%
• Text + Diagrams [ 509KB Original | 354KB Compressed ] Smaller by 30%
• Text + Image [ 3.6MB Original | 2.45MB Compressed ] Smaller by 32%

6. Jina PDF

Yes Bulk | No Preset | Average 23% Smaller

• Text only [ 52KB Original | 46KB Compressed ] Smaller by 11.5%
• Text + Diagrams [ 509KB Original | 445KB Compressed ] Smaller by 12.5%
• Text + Image [ 3.6MB Original | 2.01MB Compressed ] Smaller by 44%

7. Foxy PDF

Yes Bulk | No Preset | Average 3% Smaller

• Text only [ 52KB Original | 50KB Compressed ] Smaller by 5.9%
• Text + Diagrams [ 509KB Original | 500KB Compressed ] Smaller by 1.7%
• Text + Image [ 3.6MB Original | 3.6MB Compressed ] Smaller by 1%

8. PDF Zipper

No Bulk | 2 Preset | Average 37% Smaller

• Text only [ 52KB Original | 34.4KB Compressed ] Smaller by 34%
• Text + Diagrams [ 509KB Original | 345KB Compressed ] Smaller by 32%
• Text + Image [ 3.6MB Original | 2MB Compressed ] Smaller by 45%

9. Reduce PDF

No Bulk | No Preset | Average 8% Smaller

• Text only [ 52KB Original | 50.4KB Compressed ] Smaller by 6%
• Text + Diagrams [ 509KB Original | 445KB Compressed ] Smaller by 12.5%
• Text + Image [ 3.6MB Original | 3.4MB Compressed ] Smaller by 6.3%

10. Compress PDF

No Bulk | No Preset | Average 32% Smaller

• Text only [ 52KB Original | 39KB Compressed ] Smaller by 25%
• Text + Diagrams [ 509KB Original | 446KB Compressed ] Smaller by 12%
• Text + Image [ 3.6MB Original | 1.5MB Compressed ] Smaller by 58%