Edit PDF Tools
Best for users who need to change the visible PDF page, add a signature, trim margins, stamp a file, or prepare a document before sharing.
Category guide
How to choose the right edit & annotate workflow
Use this category when the PDF already exists and the next task is a visible page change. These workflows help users sign forms, crop page frames, add marks, number pages, fill prepared documents, or make review-ready edits without converting the file back to another format.
- Pick Sign PDF when the only missing step is a visible signature or approval mark.
- Pick Crop PDF when the page content is fine but scan borders, margins, or framing need cleanup.
- Pick Edit PDF for mixed annotation, text, highlights, shapes, or review markup in one workspace.
- Move to secure PDF workflows if the real task is passwords, access control, redaction, or privacy cleanup.
Related PDF tasks
Recommended entry pages
Sign PDF
Sign PDF online by drawing, typing, or uploading a signature. Place signatures on contracts, forms, and approval documents without printing or scanning.
Crop PDF
Crop PDF online to trim margins, remove extra borders, and focus on the content you need. Clean up scans and standardize page framing.
Edit PDF
Edit PDF online with text, highlights, comments, shapes, and visual markup. Use an online PDF editor for review changes without desktop software.
Edit PDF
Edit PDF online with text, highlights, comments, shapes, and visual markup. Use an online PDF editor for review changes without desktop software.
Sign PDF
Sign PDF online by drawing, typing, or uploading a signature. Place signatures on contracts, forms, and approval documents without printing or scanning.
Crop PDF
Crop PDF online to trim margins, remove extra borders, and focus on the content you need. Clean up scans and standardize page framing.
Edit Bookmarks
Add, edit, and manage PDF bookmarks. Create navigation structure for your documents.
Table of Contents
Generate a table of contents for your PDF. Create clickable navigation from bookmarks.
Page Numbers
Add page numbers to PDF files online with custom positions, formats, starting numbers, and page ranges for polished documents.
Add Watermark
Add watermark to PDF files online with text or image stamps. Mark drafts, confidential files, brand assets, and review copies.
Header & Footer
Add header and footer to PDF files online with page numbers, dates, titles, legal references, or custom text on each page.
Invert Colors
Invert PDF colors for dark mode reading. Convert documents to negative colors.
Background Color
Change PDF background color. Add colored backgrounds to document pages.
Change Text Color
Change text color in PDF documents. Modify the color of all text content.
Add Stamps
Add stamp to PDF files online with approval, draft, reviewed, rejected, confidential, or custom image stamps for document workflows.
Remove Annotations
Remove annotations from PDF files online. Delete comments, highlights, sticky notes, stamps, and review markup before sharing.
Form Filler
Use a PDF filler online to complete forms, type into fields, check boxes, add signatures, and download a filled PDF without printing.
Form Creator
Make a fillable PDF online by adding text fields, checkboxes, dropdowns, date fields, and signature fields to an existing document.
Remove Blank Pages
Remove blank pages from PDF files online. Detect empty scan pages, separators, and accidental blanks before saving a cleaner document.
PDF Reader
Free online PDF reader. View, navigate, zoom, rotate, and print PDF documents directly in your browser.
Citation Linker
Scan and activate citation markers in PDFs, converting them into clickable DOI links or page-jump targets.
Form Logic Designer
Design dynamic behaviors using a glassmorphic node canvas and inject interactive AcroJS logic into PDF forms.
Auto Generate Bookmarks
Analyze document layout hierarchy and regex patterns (e.g. Chapter) to generate and inject /Outline bookmark catalogs.
Batch Inject Barcodes
Generate custom QR/Code128 tags and precisely inject them into bulk PDF pages with aligning guidelines.
Extract Signature & Stamp
Extract handwritten signatures and red corporate stamps from photos, remove paper shadow noise, and export transparent PNGs.
Generate Interactive TOC
Generate aesthetic Table of Contents pages, insert them pre-content, and wire internal bidirectional GoTo anchors.
Two-Column Paper Reflow
Analyze IEEE/ACM double-column paper PDF structures and reflow them into responsive single-column layouts for smooth mobile and e-Reader viewing.
Calculate Book Spine Width
Calculate book spine width based on page count and paper GSM, and generate a printable cover template with spine fold lines.
Grid Scratchpad Canvas
Stitch high-quality grid, ruled, or Cornell note-taking margins to PDF pages for formula derivations and exam note preparation.