How to Add Page Numbers to a PDF: Positions, Formats, and Ranges Explained
Add page numbers to a PDF the right way (choose position, format, starting number, and which pages to number) for reports, contracts, and long documents.
Reshape and read the data formats work actually arrives in (CSV, Excel, JSON, EPUB and RTF) with a real desktop-app feel, entirely in your browser.
9 tools available
View CSV files online as a fast, sortable spreadsheet, search across every cell, sort any column, and read a live per-column profile with row/column counts and numeric stats. Read-only, so you never touch the data. Nothing is uploaded.
Open, edit and clean CSV files in your browser as a real spreadsheet, fix cells, add or delete rows and columns, sort, find, and export to CSV, JSON or Excel. Nothing is uploaded.
Convert CSV to JSON in your browser. Paste or drop a.csv and get a clean array of objects or arrays with a header toggle, optional number/boolean type inference and pretty or minified output. Nothing is uploaded.
Convert JSON to CSV in your browser. Paste an array of objects and get a spreadsheet-ready CSV with a header row, automatic flattening of nested keys, and a choice of comma, semicolon or tab delimiter. Copy or download instantly. Nothing is uploaded.
Convert CSV to a real Excel.xlsx file in your browser. Paste or drop a.csv, preview the parsed grid live, name the sheet, and download a workbook that opens natively in Excel, Google Sheets and LibreOffice. Delimiter is auto-detected. Nothing is uploaded.
Convert Excel to CSV in your browser. Drop an.xlsx or.xls, pick the sheet you want and download a clean, correctly-quoted CSV. Multi-sheet workbooks, commas inside cells and quoted fields are all handled. Nothing is uploaded.
Open and read any.epub book right in your browser, a paginated, book-like reader with a table-of-contents sidebar, adjustable font size and light, sepia or dark themes. Nothing is uploaded. Your book never leaves your device.
Open and read.rtf (Rich Text Format) files right in your browser. Drop or paste an RTF document and see its formatted text (bold, italic, underline and paragraphs) then export clean HTML or plain text. Nothing is uploaded.
Open and view almost any document in your browser. Drop a PDF, CSV, Excel, text, Markdown, EPUB, RTF or image file and the viewer auto-detects the format and previews it instantly, paged PDFs, scrollable spreadsheets, rendered Markdown and more. Nothing is uploaded.
Data arrives in whatever format the last system happened to emit: the CSV with the wrong delimiter, the workbook you need as JSON, the EPUB you have no reader for. These tools give you a fast, private workbench to reshape and read that content on the spot. Drop a file in, watch it transform, copy or download the result, and move on.
Browse the 9 tools grouped by what they do.
View CSV files online as a fast, sortable spreadsheet, search across every cell, sort any column, and read a live per-column profile with row/column counts and numeric stats. Read-only, so you never touch the data. Nothing is uploaded.
Open, edit and clean CSV files in your browser as a real spreadsheet, fix cells, add or delete rows and columns, sort, find, and export to CSV, JSON or Excel. Nothing is uploaded.
Convert CSV to JSON in your browser. Paste or drop a.csv and get a clean array of objects or arrays with a header toggle, optional number/boolean type inference and pretty or minified output. Nothing is uploaded.
Convert JSON to CSV in your browser. Paste an array of objects and get a spreadsheet-ready CSV with a header row, automatic flattening of nested keys, and a choice of comma, semicolon or tab delimiter. Copy or download instantly. Nothing is uploaded.
Convert CSV to a real Excel.xlsx file in your browser. Paste or drop a.csv, preview the parsed grid live, name the sheet, and download a workbook that opens natively in Excel, Google Sheets and LibreOffice. Delimiter is auto-detected. Nothing is uploaded.
Convert Excel to CSV in your browser. Drop an.xlsx or.xls, pick the sheet you want and download a clean, correctly-quoted CSV. Multi-sheet workbooks, commas inside cells and quoted fields are all handled. Nothing is uploaded.
Open and read any.epub book right in your browser, a paginated, book-like reader with a table-of-contents sidebar, adjustable font size and light, sepia or dark themes. Nothing is uploaded. Your book never leaves your device.
Open and read.rtf (Rich Text Format) files right in your browser. Drop or paste an RTF document and see its formatted text (bold, italic, underline and paragraphs) then export clean HTML or plain text. Nothing is uploaded.
Open and view almost any document in your browser. Drop a PDF, CSV, Excel, text, Markdown, EPUB, RTF or image file and the viewer auto-detects the format and previews it instantly, paged PDFs, scrollable spreadsheets, rendered Markdown and more. Nothing is uploaded.
The practical rules behind every tool here, so your conversions stay faithful and your data survives the round-trip.
A 'CSV' that's actually semicolon- or tab-separated, or one with quoted fields containing commas, is the number-one cause of a mangled import. A robust parser detects the delimiter, respects quoting and handles embedded newlines, so a single stray comma in an address doesn't shift every column.
The same table can become an array of row-objects, a columnar structure or nested records. Pick the JSON shape your API or app expects up front. Reshaping downstream is far more error-prone than choosing correctly at conversion time.
Names with accents arriving as mojibake almost always means a UTF-8 file was read as Latin-1, or the reverse. It looks like corrupted data and is really a labelling problem, re-open with the right encoding and the rows are perfectly intact.
Comparing documents line by line catches moved paragraphs. Comparing word by word catches a single edited figure. Choose the granularity that matches what you're checking so real changes stand out instead of drowning in reflowed whitespace.
Markdown, CSV and plain text carry no page layout, so rendering them to PDF means the tool decides typography and pagination. Rich formats like PowerPoint or a heavily-styled PDF can't be perfectly rebuilt in the browser. Expect a faithful best-effort, and keep your original for anything pixel-critical.
Contracts, exports and financial spreadsheets are exactly the documents you shouldn't upload to a random converter. Everything here runs locally in your browser tab, so the file you drop in is processed on your machine and nowhere else.
Tutorials and tips for getting more from our document studio.
Add page numbers to a PDF the right way (choose position, format, starting number, and which pages to number) for reports, contracts, and long documents.
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Free, private and instant: everything runs in your browser.