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Test scope & comparison notes
These are recorded facts, not a unified ranking. Tested tiers and scope are not consistently recorded. Read pricing with its date and timing with its conditions. Privacy observations reflect visible flows and statements, not a security audit.
Cross-task capability coverage across selected products
Each product is scored independently per task edge; switch tasks below while keeping shared products selected| Task edge | online-convert.com | pdfcompressor.com | Switch / compare |
|---|---|---|---|
| Image compression | 90/100 2048 × 2048 · PNG | Not tested in topic | Compare in task topic → |
| PDF compression | 94/100 PDF · Output attached | 79/100 PDF · Output attached | Active task |
| Scanned PDF OCR | 94/100 PDF · Output attached | Not tested in topic | Compare in task topic → |
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Browse this task →| Criterion | Online-Convert PDF compression 94/100 Seven-aspect task score Online-Convert performed strongly in the 2-page hybrid PDF compression benchmark, completing server-side processing in 12.06 seconds to deliver a 79.0 KB document. It achieved a 95.24% file reduction (20.99x) while retaining 100.0% of all 17 vector text operators and table figures with zero logins and no watermarks. Tested export PDF · Output attached Historical test · 2026-11-05 | PDF Compressor PDF compression 79/100 Seven-aspect task score PDF Compressor provides a completely free, login-free batch compression service supporting up to 20 files with 1-hour auto-purge, slashing file size by 90.82% in 2.08s, but at the steep cost of rasterizing most vector text into bitmaps, sacrificing text selectability and sharp rendering. Tested export PDF · Output attached Historical test · 2026-10-31 |
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| Pricing & rules | ||
| Pricing plans | Online-Convert free trial credits, Pay As You Go packages and subscriptions · 2026-10-31 Plan · source date Monthly / one-time Annual bill / period Quota & limits Free Trial2026-10-31 ↗ Free Free Free 16 free trial credits upon signup without payment details Supports evaluation of most conversion and compression tools；Shared standard queue with file size limits；No automatic renewal；Valid until credits exhausted Pay As You Go (240 Credits)2026-10-31 ↗ USD 8 · one-time payment Usage / one-time Usage / one-time 240 credits ($0.0333/credit), valid for 1 year Access to all tools, no waiting queue, priority processing Rules [1] [2] [3]Pay As You Go (480 Credits)2026-10-31 ↗ USD 14 · one-time payment Usage / one-time Usage / one-time 480 credits ($0.0292/credit), valid for 1 year Full tools access, zero wait queue, ad-free experience Rules [1] [2] [3]Monthly Subscription (2800 Credits)2026-10-31 ↗ USD 29/month — Monthly 2800 credits per month (up to 2800 standard tasks or 350 AI tasks) All features, no waiting queue, batch concurrent processing, no ads；Unused monthly credits do not roll over；Renews monthly, cancel anytime in dashboard；Valid during active billing period Annual Subscription (2800 Credits/mo)2026-10-31 ↗ — Annual price not verified Annual 2800 credits per month; UI states $23.17 USD/month equivalent without full annual total All features, no waiting queue, batch concurrent processing, no ads；Annual billing total not stated upfront; held as null with partial coverage；Renews annually；Valid during annual period 5 plan / billing-period records, all listed; — means that period is not recorded. Anonymous conversions for basic files; 16 free trial credits upon registration; Pay As You Go packs: 240 credits for $8, 480 for $14; monthly subscription $29/mo for 2800 credits; annual plans state monthly equivalents without full upfront invoice total. Verification has gaps; unknown prices and quotas are not inferred. Cancellation, sources & verification recordCancellation and refund terms unverified Online-Convert Plans & Pricing ↗ · 2026-10-31 Capture 1 ↗ | PDF Compressor web batch compression tool · 2026-10-31 Plan · source date Monthly / one-time Annual bill / period Quota & limits Web Free2026-10-31 ↗ Free Free Free Batch upload up to 20 files per task, unlimited daily usage Automated PDF compression with individual or batch ZIP downloads；1-hour file retention, maximum 20 files per batch 1 plan / billing-period records, all listed; — means that period is not recorded. Official site explicitly states all features are free, supporting up to 20 files at once with zero paywalls. Cancellation, sources & verification recordCompletely free without subscription; no cancellation or refund terms needed. Official homepage and compression workspace ↗ · 2026-10-31 Capture 1 ↗ |
| Free & trial allowance on the test date | Anonymous guests can convert everyday small files; registered users receive 16 trial credits | Completely free, batch upload up to 20 files per task |
| Cancellation & refunds | Not verified | Completely free without subscription; no cancellation or refund terms needed. |
| Disclosure of costs & limits | Immediate processing upon upload, direct download and delete links provided in result table | Homepage states 20-file batch limit; terms specify 1-hour deletion |
| Task quality | ||
| Measured fixture results | File reduction: 95.24% · Output size: 79 KB · Selectable text retained: 100% · Page 2 preserved: Yes | File reduction: 90.82% · Output size: 152.3 KB · Selectable text retained: 11.1% · Page 2 preserved: Yes |
| Fixture findings | 95.24% file reduction (1.66MB to 79KB, 20.99x) with 100.0% retention of vector text and tabular layouts. | In the 2-page mixed-content anchor benchmark, file size plummeted from 1,659 KB to 152.3 KB (-90.82%), but underlying vector text retention dropped to 11.1% (only 1 of 4 headings preserved, table text fully rasterized). |
| Original historical observation | Online-Convert compressed the 1.66MB test PDF to 79.0 KB under default settings, smooth image resampling with 100% vector typography preserved (02_result.png, 03_download.png). | PDF Compressor accepted the sample without login, compressed it by 90.82% to 152.3 KB in 2.08s, and exported a watermark-free PDF with rasterized text (01_landing.png, 02_result.png, 03_download.png). |
| Suitable uses · historical assessment | Users seeking to reduce large image-heavy PDFs below 100KB without login while preserving sharp vector text under EU GDPR protections | Users needing maximum file size reduction who do not require searchable or selectable vector text |
| Result & output evidence | ||
| Delivery capabilities | ||
| Recorded export specifications | PDF · Output attached · No watermark in test | PDF · Output attached · No watermark in test |
| Historical specification note · not an official maximum | Complete 2-page native vector PDF (79.0 KB, 95.24% reduction) | Two-page PDF (152.3 KB, no watermark, 90.82% reduction) |
| Watermark observation | No watermark | No watermark |
| Batch & API | Supports multi-file batch additions and advanced parameter tuning | Supports batch upload of up to 20 files with ZIP download |
| Recorded free-tier dimensions | Not verified | Not verified |
| Attached file dimensions | Not verified | Not verified |
| Speed & reliability | ||
| Timing observation | Network-observed server wait: 12.06s · End-to-end reference: 13.56s | Network-observed server wait: 2.08s · End-to-end reference: 2.08s |
| Date & fixture | 2026-11-05 · anchor_pdfcompress_v1 · US-West (California) | 2026-10-31 · anchor_pdfcompress_v1 · US-West (California, AS2914) |
| Repeated tests & reliability | No standardized repetition count, success rate or variability range is recorded. | No standardized repetition count, success rate or variability range is recorded. |
| Interaction experience | ||
| Account requirements | No login in this test | No login in this test |
| Sign-in methods | Direct upload & compress without login | Direct batch upload with zero login required |
| Manual adjustment | Not verified | Not verified |
| Interaction observations | Not verified | Not verified |
| Background & reputation | ||
| Service lifecycle notice | Not verified | Not verified |
| Operator | QaamGo Media GmbH | PDF Compressor Team |
| Recorded origin | Cologne, Germany | Not verified |
| Domain history record | Domain registered in 2009 | Not verified |
| Background & reputation assessment | Not verified | Not verified |
| External reputation record | Operated continuously by German registered company QaamGo Media GmbH with transparent EU GDPR disclosures. | Not verified |
| Engineering & privacy | ||
| Processing location | Uploaded for cloud processing | Uploaded for cloud processing |
| Third-party tracking record | Google Analytics · Google AdSense · PayPal · Stripe | Google Ads · Google Analytics |
| Engineering & privacy assessment | Not verified | Not verified |
| Retention statement | Claims deletion within 24 hours; deletion not independently verified | Claims deletion within 1 hours; deletion not independently verified |
| Evaluation basis | ||
| Pricing transparency | ||
| Interaction restraint | ||
| Background & reputation | ||
| Engineering & privacy | ||
| Task quality | 65 / 65 Size Reduction: -95.24% (1659 KB → 79 KB, 20.99× ratio) · Selectable Vector Text Retained: 100% · Page 2 Preserved: Yes | 45 / 65 Size Reduction: -90.82% (1659 KB → 152.3 KB, 10.89× ratio) · Selectable Vector Text Retained: 11.1% · Page 2 Preserved: Yes |
| Deliverable specifications | 20 / 20 Clean unwatermarked export (8/8); Export spec: Complete 2-page native vector PDF (79.0 KB, 95.24% reduction) | 14 / 20 Clean unwatermarked export (8/8); Export spec: Two-page PDF (152.3 KB, no watermark, 90.82% reduction) |
| Processing speed | 11 / 15 Network-observed server wait: 12.06s (API mode: cloud_online_convert_compress; network upload 1.5s / end-to-end 13.56s shown for reference only, never penalized) | 15 / 15 Network-observed server wait: 2.08s (API mode: cloud_pdfcompressor_cluster; network upload 0s / end-to-end 2.08s shown for reference only, never penalized) |
