A calculator tape for any PDF
Add up a column in a statement, an invoice or a scanned report — in any PDF viewer, without Acrobat Pro and without a plug-in. You keep a labelled tape you can print or save as a PDF.
Tax and audit work is full of PDFs you have to add up: brokerage statements, bank statements, payroll reports, invoices someone scanned. Retyping every figure is slow, and a typo hides until the totals don’t match. DeskCalc takes the numbers straight off the page and puts them on a tape where you can see every line.
From the PDF onto the tape
| Your PDF | How | Result |
|---|---|---|
| Text you can select | Select the column, Ctrl+C, switch to DeskCalc, Ctrl+V | exact — nothing is recognised, so nothing can be misread |
| Scanned or locked | Click & Calc: Win+Shift+A, draw a box around the figures, release | the built-in text recognition reads the screen — zoom in first for best results |
Either way the figures arrive one per line and DeskCalc totals them. It works with whatever shows the PDF: Edge, Chrome, Acrobat Reader, Foxit — or any other window. Details and tips: Click & Calc documentation.
Check it, label it, keep it
- Tie it out. Compare the tape total with the summary line on the statement. If it is off, the tape shows every line — you find the one that is different.
- Fix a line, not the whole tape. Click a wrong figure and type the right one; everything below recalculates.
- Label the lines with the page, the account or the payee, so the tape explains itself later.
- Keep the proof. Print the tape or save it as a PDF and file it with your workpapers, next to the source document.
Why not let an AI assistant add it up? Assistants read tables well, but a sum you cannot see is a sum you cannot check — and asked twice, they don’t always give the same answer. A tape shows every figure that went into the total. If you do use one, DeskCalc Verify puts the figures it read on a tape for you to check and confirm.
What DeskCalc does not do
- It does not write into your PDF. The source stays untouched; the tape is a separate printout or PDF. Plug-ins that stamp a tape or tick marks into the document usually need Acrobat Standard or Pro.
- Windows only. DeskCalc runs on Windows (7 to 11), offline, without an account.
- Recognition reads pixels. Very small or blurry figures can be misread — zoom in, or copy and paste when the text is selectable.
Common questions
Do I need Acrobat or a plug-in?
No. DeskCalc works next to whatever program shows the PDF, including the free viewers.
Does it work with scanned PDFs?
Yes, with Click & Calc. The text recognition is built in and runs on your PC. The larger the figures on screen, the more reliable the result.
Are my documents uploaded anywhere?
No. Copy and paste and the recognition both run locally; DeskCalc needs no account and no internet connection for this.
Can I add up several columns or pages?
Yes. Capture one column after the other; each lands on the same tape. Label the lines with the page so you can trace them back.
Try it on your next statement
Every feature, including Click & Calc and PDF export, is free for 31 days. After that: a one-time licence, no subscription.