Suggestions appear as you type. Use the up and down arrows to choose one and Enter to open it.

This page's audience our own tag's counts — open to see them
–Visits
–Page views
–Clicks to vendors
–Time on page
–Reading now
Clicks to vendors, by tool
  • –
Top countries
  • –
Devices
  • –

– · visits, page views and clicks counted by our own tag, which counts more than our checked analytics; every figure rounded down · how we count

Head-to-head · PDF Compression Software

PDF.co vs PDF Compressor by DocuPub

  • Updated Oct 2026
  • Both researched from official sources
  • 3 checks side by side
Higher score PDF.co #5 in PDF Compression Software 8.8/10 30-day trial Free trial✓ 1 of 3 features Visit PDF.co
PDF Compressor by DocuPub #8 in PDF Compression Software 8.5/10 Free plan Free plan✓ 2 of 3 features Visit DocuPub

PDF.co leads on 0 checks, PDF Compressor by DocuPub on 1, and 2 are even. Who comes out ahead on the 3 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scorePDF.co · 8.8/10
  • Free planonly PDF Compressor by DocuPub
  • Free trialonly PDF.co
  • Most featuresPDF Compressor by DocuPub · 2 of 3

PDF.co scores higher on our rubric for pdf compression software: 8.8 against 8.5 out of 10; our editors rank them #5 and #8.

PDF Compressor by DocuPub offers free plan; PDF.co doesn't.

PDF.co is the better fit for businesses automating PDF compression workflows. PDF Compressor by DocuPub is the better fit for users needing free configurable compression.

  • PDF.co fits best

    Businesses automating PDF compression workflows

  • PDF Compressor by DocuPub fits best

    Users needing free configurable compression

Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.

Side by side

Feature PDF.co 8.8/10 Visit ↗ PDF Compressor by DocuPub 8.5/10 Visit ↗
At a glance
Editor score 8.8 8.5
Ranking #5 in PDF Compression Software #8 in PDF Compression Software
Best for Businesses automating PDF compression workflows Users needing free configurable compression
Pricing model Paid Free
Starting price $8.99/mo Free plan
Free plan — ✓ (best)
Free trial 30 days —
Deployment Cloud, Self-hosted Cloud, Desktop
Platforms Web Web, Windows
Features PDF.co 1/3 · PDF Compressor by DocuPub 2/3
Batch compression Not checked yet Not checked yet
Offline desktop app Not checked yet ✓ (best)
API access ✓ ✓
Specs
Compression modes Not checked yet Not checked yet
Maximum file size Not checked yet 50 MB
Supported platforms web, api, self_hosted web, windows, api
Our review
Pros
  • Four compression presets plus image, font, resolution, and quality controls
  • Full API access, asynchronous processing, and self-hosted deployment
  • Integrations with Zapier, Make, n8n, and other workflow platforms
  • Free web and Windows compression options
  • Detailed image, object, metadata, and font controls
  • PDF/A preservation and PDFCOMPRESS integration support
Cons
  • No free plan
  • Annual-plan monthly-equivalent pricing requires annual billing
  • Enterprise pricing and features are customized
  • Online files are limited to 50 MB
  • The local application is available for Windows
  • Advanced settings may require document-processing expertise
Our verdict

PDF.co is a hosted REST API platform for automating PDF processing and document workflows. It is aimed at developers and organizations that need to compress, convert, extract, parse, edit, merge, split, encrypt, decrypt, or fill PDF forms…

Read the review →

PDF Compressor by DocuPub reduces PDF file sizes through a free online service, a downloadable Windows application, and programmatic PDFCOMPRESS integration. It suits individuals and teams that want configurable compression rather than a…

Read the review →
  1. PDF.coPDF Compression Software 8.830-day trial
  2. PDF Compressor by DocuPubPDF Compression Software 8.5Free plan

Strengths and trade-offs

  • PDF.co — where it wins

    • Four compression presets plus image, font, resolution, and quality controls
    • Full API access, asynchronous processing, and self-hosted deployment
    • Integrations with Zapier, Make, n8n, and other workflow platforms

    Where it doesn't

    • No free plan
    • Annual-plan monthly-equivalent pricing requires annual billing
    • Enterprise pricing and features are customized
  • PDF Compressor by DocuPub — where it wins

    • Free web and Windows compression options
    • Detailed image, object, metadata, and font controls
    • PDF/A preservation and PDFCOMPRESS integration support

    Where it doesn't

    • Online files are limited to 50 MB
    • The local application is available for Windows
    • Advanced settings may require document-processing expertise
  • PDF.co8.8/10 · 30-day trial

    A paid PDF automation API with compression controls, integrations, and self-hosted support.

    Visit PDF.coFull verdict →
  • PDF Compressor by DocuPub8.5/10 · Free plan

    A free, configurable compressor for users who want control beyond basic file shrinking.

    Visit DocuPubFull verdict →

More comparisons

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update