Side-by-side drawing review

See what changed on your supplier drawings.

Load your drawing and the supplied one. Every change is highlighted, and you approve or reject.

Try the live demo See the 5 steps

Demo-001 / Sheet 1 of 1 / Ready

DEMO-001 MOBILE STORAGE TROLLEY Live demo, try it READY
YOUR file DEMO-001-REVA.PDF
100%
SUPPLIED file DEMO-001-REVB.PDF
100%

The decision stays with you.

Purchase order checking

Load your drawing and the PO. Check them together.

Upload the drawing beside its purchase order. APPVLR reads the requirement, keeps the source visible, and asks you to confirm the match.

Your fileReady
Technova Industries drawing DEMO-001, REV B, a mobile storage trolley, ready to check against a purchase order.

DEMO-001-REVB.PDFA4 drawing · 1 page

Supplied fileReady
Sample purchase order PO-4471 for the DEMO-001 mobile storage trolley.

PO-4471.PDF Purchase order · 1 requirement item

Check PO requirements Requirements checked Ready to check
The full Technova Industries drawing, DEMO-001 REV B, kept visible during the purchase order check. Overall size 800 wide, 450 deep and 900 high.
DEMO-001 REV B · Full drawing

Requirement confirmation

APPVLR places the purchase-order value beside the drawing value.

Purchase order PO-4471

Overall size800 × 900 × 450 mm

Your drawing DEMO-001 REV B

Overall size800 × 900 × 450 mm

MatchedWidth, height, and depth are the same. You confirm the requirement.

How it works

From two drawings to a decision in five steps.

  1. Load both drawingsAdd your drawing and the supplied drawing.
  2. Check the page pairsConfirm which pages should be compared.
  3. Review each changeSee the same highlighted area on both drawings.
  4. Approve or rejectKeep or ignore findings and record your decision.
  5. Save the reviewed PDFAdd marks or comments, preview, save, and share.
36
Review checks run on every pair of drawings you load.
5
Guided steps take you from two loaded drawings to a saved, stamped review PDF.
0
Approvals or rejections made without you. APPVLR highlights the changes; you make every call.

See the review time you get back.

Load both sheets, let APPVLR make the first sweep, and start your review with every change already highlighted.

Two monitors showing the engineering drawings separately for review without APPVLR.
Without APPVLRTwo separate drawing screens
Review time
2 min-3 min

You compare both drawings manually, value by value.

One monitor showing both engineering drawings and the review summary together in APPVLR.
With APPVLRBoth drawings and findings together
Review time
30 sec-1 min

The sweep is done before you look. You check the findings and decide.

The comparison above is the same review run both ways. APPVLR keeps both drawings and the findings on one screen and handles the first sweep, leaving you to inspect the evidence and make the final decision. Comparison counts are derived from real analyses. Times are estimated ranges for the review shown, not measured customer results.

Review tools

Both drawings stay in front of you.

Keep both full sheets visible while you inspect the same highlighted area on each drawing. Use linked zoom and pan, or open either drawing full screen.

Full-sheet contextFindings never replace the drawing you are reviewing.

Matched evidenceSelect a finding and see the same area on both sheets.

Uncertain pages stay visibleUnpaired or ambiguous pages are not treated as matches.

Trained models

It finds the changes. You make the call.

APPVLR is not a general chat assistant. Its model compares dimensions, notes, parts, and supplied requirements across both drawings, then shows you the possible changes beside the source sheets.

It never approves or rejects a drawing. If a page is unclear or has no match, it stays with you for manual review.

  • DimensionsChanged values, including overall height, width, and depth.
  • Drawing textNotes, callouts, title blocks, and revision text.
  • Shapes and partsMoved, added, or removed geometry that text alone does not reveal.
  • RequirementsPurchase-order or manual-spec values, when supplied.

Capabilities

Everything needed to finish the review.

  • Drag, drop, paste, or choose files
  • PDF, PNG, and JPG drawings
  • Multiple pages
  • Page assignments
  • Rotation
  • Ambiguous pages
  • Unmatched pages
  • Purchase order
  • Manual Specs

Review record

Leave with a clear review record.

Demo only. These two buttons are the ones in the app's Export step.

One complete review record. The reviewed PDF keeps every comment, approval tick, rejection cross, and final stamp on the drawing, so anyone who opens it can see what was checked and why.

Saved where you expect it. Save or share the completed PDF from the review, including to a Google Drive or OneDrive folder exposed by your device. APPVLR does not receive a second cloud copy.

Uncertainty

Uncertainty stays visible.

Ambiguous pagesAPPVLR asks you to confirm the assignment.

Unreadable evidenceRetry analysis or continue with manual inspection.

Scanned sheetsA sheet the model cannot read stays with you rather than getting a guess.

Different productsThe comparison stops until you confirm it should continue.

Your data is yours.

Never used for trainingYour drawings, comments, decisions, and evidence are not used to train or evaluate AI models.

No sale or profilingNo content, email, IP address, or device identifier is used for advertising or usage profiling. Only anonymous daily totals are kept.

Processed for your reviewNormal review files pass through private automated services and are not added to a review library. We do not routinely view them.

Stored only when you chooseTeam job files stay within that team and become eligible for deletion 90 days after the job closes. You can delete them sooner.

Read the plain-language Privacy Policy and Terms.

Start your next drawing review.

Create an account and review your first pair today. The free plan includes 3 analyses a day, and you can upgrade any time.