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Comparison · DevOps
PgBouncer vs Stirling-PDF
A side-by-side editorial comparison of PgBouncer and Stirling-PDF — release velocity, themes, recent moves, and the top alternatives to consider.
PgBouncer vs Stirling-PDF: at a glance
What is PgBouncer?
PgBouncer patches a SCRAM flaw that let a known user log in as an admin
PgBouncer's 1.26 line pairs features with a heavy security load. 1.26.0 tracks search_path and default_transaction_read_only by default, so one client's SET no longer leaks to others in transaction pooling, adds pool_idle_timeout and per-user query_wait_timeout, and removes the old online-restart takeover in favour of rolling restarts. It also fixed three CVEs. Three weeks later, 1.26.1 fixed three more, including one where a user with a password in auth_file could log in as any other SCRAM user, admins included.
What is Stirling-PDF?
Stirling PDF's 3.x line ships bulk processing, org-wide signing and fortnightly feature releases
Stirling PDF 3.0 in late September added the PDF Processor for running tools across folders, FTP or S3 sources, optional AI classification and extraction, free OAuth SSO and a free allowance of 1,000 automated PDFs a month. Releases since have arrived about every two weeks: 3.1.0 made group signing (Stirling Sign) default for new users and trialled an embedded Office converter, 3.2.0 replaced the multi-tool with a Page Editor and let password-protected PDFs be used without removing the password, and 3.2.1 and 3.2.2 added viewer and annotation features.
PgBouncer vs Stirling-PDF: editorial side-by-side
PgBouncer
2.5DEVOPS
PgBouncer patches a SCRAM flaw that let a known user log in as an admin
◆ Current state
PgBouncer's 1.26 line pairs features with a heavy security load. 1.26.0 tracks search_path and default_transaction_read_only by default, so one client's SET no longer leaks to others in transaction pooling, adds pool_idle_timeout and per-user query_wait_timeout, and removes the old online-restart takeover in favour of rolling restarts. It also fixed three CVEs. Three weeks later, 1.26.1 fixed three more, including one where a user with a password in auth_file could log in as any other SCRAM user, admins included.
◆ Where it's heading
Since 1.25.1 every release has carried CVE fixes in the authentication and packet-handling paths, and 1.26.1 found a second instance of a bug class fixed weeks earlier. The project is auditing its pre-auth surface in public, while 1.26.0 shows it still cleaning up long-standing pooling surprises.
◆ Prediction
More security point releases are likely while the auth and buffer code is under review; the entries give no sign of the next feature release.
Stirling-PDF
5.0DEVOPS
Stirling PDF's 3.x line ships bulk processing, org-wide signing and fortnightly feature releases
◆ Current state
Stirling PDF 3.0 in late September added the PDF Processor for running tools across folders, FTP or S3 sources, optional AI classification and extraction, free OAuth SSO and a free allowance of 1,000 automated PDFs a month. Releases since have arrived about every two weeks: 3.1.0 made group signing (Stirling Sign) default for new users and trialled an embedded Office converter, 3.2.0 replaced the multi-tool with a Page Editor and let password-protected PDFs be used without removing the password, and 3.2.1 and 3.2.2 added viewer and annotation features.
◆ Where it's heading
The product is moving from a self-hosted toolbox to an automation and workflow platform with metered hosted services attached. Feature releases come quickly, with visible regressions fixed in the next point release.
◆ Prediction
Expect Stirling Office Convert to move toward default and native desktop, as the 3.1.0 notes say is planned, plus continued Processor work.
Alternatives to PgBouncer and Stirling-PDF
Other DevOps products tracked by Sparkpulse, ranked by recent ship velocity. Each card links to a full editorial trajectory and lets you pivot into a head-to-head comparison with either PgBouncer or Stirling-PDF.
OpenAPI Generator
OpenAPI Generator keeps a 240-change release cadence across dozens of languages
Fiber
Fiber marks its v2 module deprecated in favour of v3
OpenTofu
OpenTofu keeps patching the 1.12 line after opening 1.13 with Symbol Libraries
Argo CD
Argo CD's 3.6 candidates have narrowed to cherry-picked fixes
Betaflight
Betaflight grew a real autopilot: waypoint missions, geofence RTH and MAVLink ground control
See all PgBouncer alternatives → · See all Stirling-PDF alternatives →
Recent activity from PgBouncer and Stirling-PDF
Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.
- 9d agoStirling-PDF3.2.2 new annotations and other minor changes and improvements
- 11d agoStirling-PDF3.2.1 Viewer improvements and bug fixes
- 17d agoStirling-PDF3.2.0 New Multi-tool, better passworded PDFs and lots of improvements
- 19d agoPgBouncerPgBouncer 1.26.1 closes a SCRAM user-impersonation flaw
- 27d agoStirling-PDF3.1.0 Stirling Sign, signature improvements, Stirling Office Convert (beta) and text editor upgrades
- 1mo agoStirling-PDF3.0.2 bug fixes and dependency updates
- 1mo agoStirling-PDF3.0.1 hotfix for windows desktop bugs
- 1mo agoPgBouncerPgBouncer 1.26.0 stops SET search_path leaking between clients
- 5mo agoPgBouncerPgBouncer 1.25.2 patches two pre-auth remote crash CVEs
- 11mo agoPgBouncerPgBouncer 1.25.1 - Fixing a bunch of bugs before Christmas (including CVE-2025-12819)
- 11mo agoPgBouncerPgBouncer 1.25.0 - The one with LDAP support ⚡
- 1y agoPgBouncerPgBouncer 1.24.1 - Fixes CVE-2025-2291
Frequently asked questions
What is the difference between PgBouncer and Stirling-PDF?
They serve adjacent needs but don't currently overlap on shipped themes. Stirling-PDF is currently shipping more aggressively (velocity 5.0 vs 2.5), with 0 editorial sparks in the last 30 days against 0. See the at-a-glance table above for a side-by-side breakdown of velocity, recent sparks, and editorial themes.
Is PgBouncer better than Stirling-PDF?
Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. Stirling-PDF is currently shipping more aggressively (velocity 5.0 vs 2.5), with 0 editorial sparks in the last 30 days against 0. For your specific use case, the alternatives sections above list other DevOps products to evaluate alongside.
What are the best alternatives to PgBouncer?
Top PgBouncer alternatives in DevOps are ranked by recent ship velocity. Browse the "PgBouncer alternatives" section above for the current picks, or visit /alternatives/pgbouncer for the full list with editorial commentary on each.
What are the best alternatives to Stirling-PDF?
Top Stirling-PDF alternatives in DevOps are ranked by recent ship velocity. Browse the "Stirling-PDF alternatives" section above for the current picks, or visit /alternatives/stirling-pdf for the full list with editorial commentary on each.