Organise Options Pin Open the original and the revised drawing, choose the two pages, then press Compare.
No file open yet Open a PDF to use these tools. You can set options now. Open files
Organise pages
Select pages in the middle, then choose an action. Shortcuts: R rotates, Delete removes, Ctrl+Z undoes.
Rotate left Rotate right
Duplicate Delete
Move to start Move to end
Insert blank page Reverse order
Select all Select none
Odd Even
Merging is automatic: every open file is part of the workspace. Use Download PDF to save them as one.
Convert
PDF to images
Format JPG PNG WebP TIFF (one multi-page file)
TIFF colour Colour Grayscale (smaller)
Resolution 72 DPI (screen) 150 DPI 300 DPI (print) 600 DPI Custom
DPI
Pages Selected pages All pages
Export images
PDF to text, Word and Excel
Word layout Editable text: paragraphs and headings Page pictures, with the text below them
Word (.docx) Excel tables (.xlsx) Text (.txt)
Text and tables are read from the PDF’s own text. Scanned pages need OCR first (OCR & scans). Complex layouts come out simplified.
PDF to CAD and vector
DXF units Sheet size in millimetres (1:1)
DXF for CAD Vector SVG Embedded pictures
Keeps the drawing’s lines, curves, fills and text, with one layer per colour. It cannot rebuild layers, blocks, walls or the original CAD model, and scanned pages have no vectors.
Other files to PDF
Use Open files for Word, Excel and PowerPoint (.docx, .xlsx, .pptx), TIFF, SVG and DXF: each becomes PDF pages in the workspace. Office layouts are simplified to text, tables and pictures (Latin text).
DXF page Fit the page to the drawing A0 A1 A2 A3 A4
DXF colours Black (plotted) As drawn
DXF scale Fit to the page
HTML page to PDF…
HTML opens your browser’s print window: choose “Save as PDF”. Scripts in the page do not run.
Images to PDF
Open JPG, PNG or WebP files; each becomes a page. Choose the page size before opening the images:
Image pages Same size as the image (150 DPI) Fit on A4 Fit on A3 Fit on A1
Then press Download PDF at the top.
Colour
Convert to Grayscale Black and white (line drawings)
Resolution 150 DPI 200 DPI 300 DPI
Download converted PDF
Grayscale and black-and-white PDFs are made of images, so text is no longer selectable.
Edit & mark up
Click a mark-up to select it. Drag to move, drag the corner to resize, double-click text to edit, Delete removes.
Colour Red Rust Blue Green Black Yellow Purple
Line Hairline Thin Medium Thick Heavy
Fill None Light tint
Text size 8 pt 10 pt 12 pt 16 pt 20 pt 28 pt 40 pt
Your name on comments (optional)
Apply style to selected Delete selected
This page
Use this crop on all pages of this size Remove crop Clear mark-ups
Everything here is added when you download. Comments become real PDF notes; use Protect › Flatten to make them part of the page. Redacted pages are turned into images so the hidden content is gone for good.
Sheet size
Each page shows its detected size. Resizing keeps drawings as vectors.
New sheet size A0 (841 × 1189 mm) A1 (594 × 841 mm) A2 (420 × 594 mm) A3 (297 × 420 mm) A4 (210 × 297 mm) A5 (148 × 210 mm) ARCH E1 (30 × 42 in) ARCH E (36 × 48 in) ARCH D (24 × 36 in) ARCH C (18 × 24 in) ARCH B (12 × 18 in) ARCH A (9 × 12 in) ANSI E (34 × 44 in) ANSI D (22 × 34 in) ANSI C (17 × 22 in) ANSI B (11 × 17 in) ANSI A / Letter Custom size
Orientation Keep each page’s orientation Portrait Landscape
Fit Scale drawing to fit the sheet Scale by a fixed percentage Keep drawing size, change sheet only
Scale (%)
Margin (mm)
Original drawing scale (optional) Not set
Apply to download Remove
Measure
Drawing scale (this page) Choose…
Calibrate from a known length Check the scale Use on all pages of this size
Units Millimetres Metres Centimetres Feet and inches
Distance
Length
Area
Rectangle
Angle
Radius
Pan
Click to place points. Double-click or press Enter to finish a length or area. Esc cancels.
Export Excel Export CSV Summary of all pages Clear page
Compare drawings
Open the original and the revised drawing, then choose the two pages.
Original (A)
Revised (B)
View Overlay: A red, B blue Changes only: removed red, added green Side by side
Original opacity
Sensitivity
Align B
← ↑ ↓ →
0, 0
Auto-align Align by a point Swap A and B Compare
Download image Download PDF
Compare whole sets
Pair sheets By page order By sheet number (Drawing set)
Compare sets & download report
OCR & scans
Text recognition (OCR)
Reads printed English text on scanned pages so it can be searched, copied and exported. It runs on this computer; the engine (about 7 MB) downloads the first time.
Pages Pages without text All pages Selected pages
Resolution 200 DPI (faster) 300 DPI (more accurate)
Make pages searchable Extract text (.txt)
Sheet numbers
To read sheet numbers and titles from title blocks, use Drawing set with “Use OCR for scanned sheets”.
Batch processing
Every open file is processed on its own and saved separately into one ZIP. Pages are used as they are in the workspace (order, rotation, mark-ups).
Operation Compress (lossless) Compress strongly (pages to images) Grayscale Black and white Title block, stamps and numbers (from Title & stamps) Resize sheets (from Sheet size) Rotate every page 90° Page images (from Convert) Text (.txt) Word (.docx) Excel tables (.xlsx) Vector SVG DXF for CAD OCR: make searchable Password-protect Merge all files into one PDF
Output names
{name} file name, {op} operation, {n} file number, {date} today.
Run Cancel Retry failed
Protect & compress
Compress
Method Lossless: keep vectors and text Strong: convert pages to images
Resolution 96 DPI (smallest) 150 DPI 200 DPI
Quality Low Medium High
Download compressed PDF
Repair & flatten
Download with forms & comments flattened Download repaired copy
Viewer
Zoom with the buttons, Ctrl + scroll or + / -. Drag to pan. Arrow keys change page. Search finds text on every page.
