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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 | products.groupdocs.app | pdfcompressor.com | Switch / compare |
|---|---|---|---|
| PDF compression | 97/100 PDF · Output attached | 79/100 PDF · Output attached | Active task |
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Browse this task →| Criterion | GroupDocs Free Online Apps PDF compression 97/100 Seven-aspect task score GroupDocs PDF Compress reduced the 1.66 MB benchmark document to 89.6 KB (-94.60% reduction) in default Medium mode in just 1.29s of server processing, fully preserving 100% selectable vector text and two-page tables with direct download. Tested export PDF · Output attached Historical test · 2026-11-03 | 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 |
|---|---|---|
| Pricing & rules | ||
| Pricing plans | GroupDocs App free tier and Premium monthly subscription · 2026-10-31 Plan · source date Monthly / one-time Annual bill / period Quota & limits Free2026-10-31 ↗ Free Free Free Free usage across 15+ apps; compress 5 ops/day (20MB), conversion 2 ops/day (20MB), merge 5 ops/day (100MB) Standard access to conversions, merging, compression, and difference comparison；Limited daily operations, single file batch on free tier；Permanently free, no renewal；Perpetual access Premium Monthly2026-10-31 ↗ USD 7/month — Monthly 1,000 operations per day per app, 30-50 batch limit, 500MB total merge limit Full access to all 15+ apps, priority processing, higher batch caps, technical support；20-50MB per file cap based on application category；Renews monthly at $7/mo, cancel anytime in dashboard；Valid during active billing period 2 plan / billing-period records, all listed; — means that period is not recorded. Free tier covers basic operations across 15+ tools (20-50MB limits, 2-5 operations/day); Premium Plan is $7/month (cancel anytime) expanding daily operations to 1,000 tasks with batch support. Cancellation, sources & verification recordCancellation and refund terms unverified GroupDocs App 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 | Three compression presets freely available within free tier size limits | 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 | Extreme/Medium/Low preset cards shown upfront with zero surprise billing | Homepage states 20-file batch limit; terms specify 1-hour deletion |
| Task quality | ||
| Measured fixture results | File reduction: 94.6% · Output size: 89.6 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 | 94.60% size reduction (1,659.0 KB -> 89.6 KB), 18.51x compression ratio, 4/4 headings and 12/12 table cells perfectly preserved without vector rasterization. | 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 | GroupDocs Medium preset compressed 1,659.0 KB sample to 89.6 KB (-94.60%, 18.51x ratio); PDF stream inspection confirms all vector text and tables preserved, with 1.29s direct download (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 needing very fast server processing (1.29s), -94.60% size reduction, and vector text fidelity | 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 | Full 2-page unwatermarked vector PDF (89.6 KB, -94.60%) | Two-page PDF (152.3 KB, no watermark, 90.82% reduction) |
| Watermark observation | No watermark | No watermark |
| Batch & API | Not verified | 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: 1.29s · End-to-end reference: 1.29s | Network-observed server wait: 2.08s · End-to-end reference: 2.08s |
| Date & fixture | 2026-11-03 · anchor_pdfcompress_v1 · US-West (California, AS2914) | 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 | Compress and download directly 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 | Aspose Pty Ltd (GroupDocs) | PDF Compressor Team |
| Recorded origin | Australia | Not verified |
| Domain history record | Established in 2012 | Not verified |
| Background & reputation assessment | Not verified | Not verified |
| External reputation record | Established commercial brand under Aspose Pty Ltd specializing in enterprise document collaboration. | Not verified |
| Engineering & privacy | ||
| Processing location | Processing location unconfirmed | Uploaded for cloud processing |
| Third-party tracking record | Google Tag Manager · Google Analytics | Google Ads · Google Analytics |
| Engineering & privacy assessment | Not verified | Not verified |
| Retention statement | Explicit retention period unconfirmed; inspect policy record | 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: -94.6% (1659 KB → 89.6 KB, 18.51× 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 | 19 / 20 Clean unwatermarked export (8/8); Export spec: Full 2-page unwatermarked vector PDF (89.6 KB, -94.60%) | 14 / 20 Clean unwatermarked export (8/8); Export spec: Two-page PDF (152.3 KB, no watermark, 90.82% reduction) |
| Processing speed | 14.5 / 15 Network-observed server wait: 1.29s (API mode: cloud_groupdocs_pdf_compress; network upload 2.27s / end-to-end 1.29s 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) |
