Table of Contents
ToggleSix engineers commented on the manual: two in Acrobat, one on a printout, three in email. Now someone has to merge it all and work out who actually signed off on Rev C.
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The short answer: the best tool for reviewing PDFs with a team is the one your reviewers will actually open, that keeps every comment on one copy, and that shows who still hasn't signed off on which revision. For documentation teams that send long manuals and datasheets to many engineers, that usually means a browser-based review tool such as zipBoard or Filestage. Adobe Acrobat's "Share for review" is fine for a few reviewers who already use Acrobat. Bluebeam and Drawboard are built for drawings. If every SME already works in your CCMS, its own review module (Heretto, AEM Guides, Paligo) may be enough.
Marking up a PDF is easy; every PDF tool does it. The hard part is the team around the PDF:
So judge each tool on the review, not the editor. If your Acrobat shared review is already breaking, start with what breaks in Adobe shared review and how to fix it.
For how this works across several review groups (engineering, safety, regulatory, marketing), see collaborative review for documentation teams.
| Tool | Built for | Reviewers comment from | Who needs a paid seat | Compare revisions | Decisions and sign-off |
|---|---|---|---|---|---|
| zipBoard | Review and approval of PDFs and other content with many reviewers | Browser; share-link reviewers comment on PDFs without signing up | Reviewers and collaborators are unlimited on every plan | Side by side, with text changes highlighted on PDFs | Required reviewers, due dates, a decision per reviewer per version |
| Adobe Acrobat ("Share for review") | Creating, editing and signing PDFs | Browser link; Adobe says recipients can comment without an Acrobat account | Each person who edits or shares in Acrobat; Compare Files needs Acrobat Pro | Compare Files (Acrobat Pro) | Comments in the PDF; you track sign-off yourself |
| Acrobat server-based shared review (network folder or SharePoint) | Reviews that must stay on your own servers | Acrobat or Reader on the desktop | The initiator needs Acrobat (not available in Reader) | Separate (Compare Files) | Comments in the PDF |
| Bluebeam Revu / Studio | Construction drawings and engineering markup | Revu, or Bluebeam on web and mobile with a free Bluebeam ID | Per user, billed annually; full Studio participation needs a plan | Compare Documents and Overlay (Core plan and up) | Markup lists and statuses |
| Drawboard Projects | Drawing review for design and construction teams | Web, iOS or Windows; guests use the web app | Per user; guests invited with time-limited access | Not checked | Markups and comments |
| Filestage | Approval of marketing, creative and regulated content | Browser; reviewers don't need an account | Seats sold in bundles; reviewers are free | Side by side (overlay and text compare on Business) | "In review", "Needs changes", "Approved", due dates |
| CCMS review (Heretto, AEM Guides, Paligo) | Reviewing DITA/XML source inside the content platform | Browser, inside the CCMS | A reviewer licence or role in the CCMS | Inside the CCMS | Review assignments and tasks |
Sources, checked 2 Nov 2026: Adobe Share a PDF for review, Acrobat for teams pricing, Compare two versions of a PDF, shared review on network servers; Bluebeam pricing, Studio FAQs, Compare Documents vs Overlay; Drawboard pricing, inviting guests; Filestage pricing; Heretto user roles; Adobe AEM Guides review; Paligo user types. zipBoard details from our help articles on PDF review, text changes and required reviewers.
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Best for: documentation teams sending long PDFs to many SMEs, inside and outside the company
zipBoard is a review and approval tool. It sits on top of the PDF you already publish, from FrameMaker, a DITA pipeline, InDesign or Word, and runs the review around it.
What it doesn't do: it isn't a PDF editor (you can't rewrite text in the PDF), it doesn't write comments back into DITA or XML source, and comments already embedded in a PDF don't convert into zipBoard comments.
Best for: a few reviewers, one or two rounds, and a team that already lives in Acrobat
Acrobat is the best tool here for creating, editing and signing PDFs, and most companies already own it. Its current review method shares a link: Adobe says reviewers can comment in a browser "with no sign-in or software needed", and their comments show up in the sender's Acrobat.
Our Acrobat vs zipBoard comparison goes row by row, and the real cost of Adobe Acrobat for documentation teams has a calculator for your own numbers.
Best for: engineering drawings, measurements and construction document sets
Bluebeam is the standard for drawing markup in construction and heavy engineering, with measurement, Compare Documents and Overlay on its Core plan and up. Studio Sessions let a team mark up the same file at once.
More: Bluebeam vs zipBoard.
Best for: design and construction teams reviewing drawings on tablets and Windows
Drawboard Projects is a PDF markup and review tool with web, iOS and Windows apps, and offline markup on Windows and iOS. It's sold per user per month, and you can invite clients and partners as guests with time-limited access; guests use the web app (Drawboard pricing).
More: Drawboard vs zipBoard.
Best for: marketing, creative and regulated content approval with many outside reviewers
Filestage is a browser-based approval tool. Reviewers don't need an account, files move through "In review", "Needs changes" and "Approved" with due dates and reminders, and you can compare two versions side by side. It also turns sticky notes and highlights already in an uploaded PDF into review comments. Seats are sold in bundles and reviewers are free (Filestage pricing).
Versus zipBoard for doc teams: both cover reviewer access, due dates and approvals. Filestage converts comments already in an uploaded PDF; zipBoard doesn't. zipBoard adds comments filtered by the PDF's own sections, comments as tasks with owners, and PDFs added by URL so they stay on your own servers.
Best for: teams whose SMEs already have access to the CCMS and review the source
Most component content management systems now include review. Heretto has a Reviewer role with commenting and suggesting modes; AEM Guides sends review links for DITA topics and maps that open in the browser; Paligo has Reviewer and Contributor licence types, with up to 10 on its Business plan (Paligo pricing).
The trade-off: reviewers comment on topics and maps, not on the formatted PDF customers read, and each one needs a role or licence in the CCMS. Many teams keep CCMS review for writers and editors, and send the rendered PDF to engineers and outside reviewers.
Best for: agencies and marketing teams proofing creative work
Ziflow and Markup.io both review PDFs and both list unlimited reviewers on their pricing pages (Ziflow, Markup.io). Their workflows are built around creative proofing (video, images, brand assets) rather than SME sign-off on technical revisions.
More: Ziflow vs zipBoard · Markup.io vs zipBoard.
Most reviewers don't want to reread the manual. They want to know whether their comments were fixed and what else moved. Acrobat Pro (Compare Files) and Bluebeam (Compare Documents, Core plan and up) can both compare two PDFs. In zipBoard, the comparison sits inside the review: open Compare versions, read the list of text changes, and check each version's comments side by side.
Step by step: compare two PDF versions and detect text changes in a PDF. The longer guide: how to compare two PDF versions without losing track of changes.
The licence is the small number. The big ones are time and risk:
Paid seats matter too, mostly when every reviewer needs one. In zipBoard, reviewers and collaborators are unlimited on every plan. See plans
Full walkthrough in the help centre: PDF and drawing review in zipBoard. For the bigger picture, see technical document review software for SME sign-off.
AI review for technical documents is in private beta: a first pass that flags inconsistencies before the draft reaches your SMEs. Ask us about joining.
Ask about early access"Was my comment fixed?" AI Compare will check whether last round's comments were addressed in the new revision.
Get a previewFor documentation teams with many reviewers, a browser-based review tool such as zipBoard or Filestage, because reviewers comment on one copy from a link and you can see each person's decision. Adobe Acrobat's "Share for review" suits a few reviewers who already use Acrobat. Bluebeam and Drawboard suit drawing-heavy reviews.
One that your SMEs can open without a CCMS or FrameMaker seat, that tracks who still hasn't signed off on each revision, and that compares revisions. zipBoard is built for that review step; CCMS review modules work when every reviewer already has access to the CCMS.
Not with Acrobat's link-based "Share for review": Adobe says recipients can comment in a browser without an Acrobat account. The older server-based shared review needs Acrobat or Reader on the desktop. In zipBoard, share-link reviewers comment in the browser without signing up.
Yes. Acrobat Pro has Compare Files, Bluebeam has Compare Documents on its Core plan and up, and zipBoard compares versions side by side with text changes highlighted, next to each version's comments.
Use a tool that records a decision per reviewer per revision. In zipBoard, required reviewers record Approved or Changes Requested on the file, the file stays in their review list until they decide, and a new version resets the decisions.
In zipBoard, yes: your system can add PDFs by URL through the API, and there are enterprise hosting options. See reviewing documents that stay on your own servers.
Not automatically. Comments embedded by Acrobat or other tools stay in the PDF's own comment list and don't become zipBoard comments.
Compare the cost of the review, not just the licence: who needs a paid seat, which features need a higher plan, server and IT upkeep, and the writer's time merging comments. zipBoard includes unlimited reviewers and collaborators on every plan.
Usually because of the server, sign-in or comment sync after a Windows, Edge or Acrobat update. Our guide covers what breaks and how to fix it.
One copy, every comment, and a clear answer to "who still hasn't signed off?"
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Related: Get SMEs to review technical docs on time · Document approval software for engineering teams · Technical document review checklist · Compare documents side by side · Help: technical documentation reviews with many SMEs
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