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Plain-English help with invoices, pricing, tax maths, PDFs and more, each with a free tool to do the job.
Create your first professional invoice in minutes: what to write, how to number it, how to add tax and how to send it, with a free invoice generator.
5 min readHow to merge PDF files on any deviceCombine PDFs into one on any device: built-in Mac and iPhone options, what to do on Windows and Android, and a free private online method.
5 min readHow to convert JPG to PDF on your phoneTurn photos into a PDF on your phone: the built-in iPhone methods, the easiest way on Android, and tips for small, readable files.
4 min readHow to reduce a photo to 100 KB (or any size limit)Online forms often limit photos to 50, 100 or 200 KB. Learn how to shrink a photo to the size you need without making it unreadable.
4 min readHow to create a WhatsApp QR code for your businessLet customers start a WhatsApp chat by scanning a QR code, with an optional pre-filled message. Free, no app needed, never expires.
4 min readHow to track a parcel with only the tracking numberFind out which courier has your parcel from the tracking number alone, check the number for typos, and what to do when tracking stops updating.
4 min readWhat is 2FA? Two-factor authentication explained simplyTwo-factor authentication explained: how 6-digit authenticator codes work, SMS vs app codes, backup codes, and how to avoid getting locked out.
5 min readHow to extract text from a PDFCopy text from a PDF quickly, download it as a text file, and understand why scanned PDFs don't give any text.
3 min readHow to crop a photo for a passport, visa or ID applicationCrop a photo to passport proportions at home, avoid the most common rejection reasons, and meet file size limits for online applications.
4 min readHow to write a receipt for a paymentWhat a proper payment receipt includes, how to show part payments and deposits, and how to create a professional receipt as PDF for free.
4 min readHow to split a PDF and save only the pages you needExtract the pages you need from a PDF into a new file on any device, without uploading it, plus how to delete or reorder pages.
3 min readHow to write a quotation that wins customersWhat to include in a business quotation, how to price it, how long it should be valid, and how to follow up, with a free quotation maker.
5 min readWhat to include on an invoice: a complete checklistThe details every professional invoice should include, from invoice numbers and dates to tax, payment terms and bank details, with a printable checklist.
5 min readQuotation, proforma invoice, invoice or receipt: which one do you need?Understand when to send a quotation, a proforma invoice, an invoice or a receipt, and what each document means for you and your customer.
4 min readHow to calculate VAT or GST: add and remove taxSimple formulas to add VAT, GST or sales tax to a price and to work out the tax included in a total, with worked examples and common mistakes.
4 min readProfit margin vs markup: the difference that costs businesses moneyMargin and markup are not the same. Learn both formulas, convert between them, and set prices for the margin you need.
4 min readHow to number your invoicesPractical invoice numbering systems for small businesses, with examples, plus what to do when you make a mistake.
3 min readInvoice payment terms explainedWhat common payment terms like Net 30, Due on receipt, 2/10 Net 30 and EOM mean, and how to choose terms that get you paid faster.
4 min readHow to make a PDF smaller for email or upload formsPractical ways to reduce PDF size: compress images before making the PDF, scan at the right resolution, split large files and remove unneeded pages.
4 min readHow to sign a PDF without printing itHow to add a typed or drawn signature to a PDF on your phone or computer, and the difference between a visible signature and a certified digital signature.
4 min readQR codes for small business: practical uses and printing tipsUseful ways small businesses use QR codes: menus, payments, Wi-Fi, WhatsApp, contact cards and reviews, plus sizing and printing tips so they always scan.
4 min readBarcodes for small business: which type do you need?Which barcode to use for stock, SKUs and retail products, when you need GS1 numbers, and how to print labels that scan reliably.
5 min readHow to turn phone photos into one PDF documentPhotograph receipts, IDs or paperwork and combine them into a single, readable PDF, with tips for sharp, straight, small files.
3 min readDelivery notes, purchase orders and credit notes explainedWhat delivery notes, purchase orders and credit notes are, who issues them, and how they fit with quotations and invoices.
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