PaperGrid
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Free, private PDF tools

Add a text watermark to a PDF

PaperGrid places your chosen text diagonally across every PDF page. Set the watermark text and opacity, then download a new watermarked copy.

Merge PDF files
16 toolsworking and tested
Privatefiles stay in your browser
Freeno account required
papergrid://workspace
READY
PDF
CONTRACT.PDF
12 pages · 4.8 MB
OUTPUT
DONE
Files stay on your device for supported local tools.
One consistent workspace across every action.

FREE BROWSER-BASED PDF TOOL

Add a text watermark to a PDF

PaperGrid places your chosen text diagonally across every PDF page. Set the watermark text and opacity, then download a new watermarked copy.

  • Free
  • No account
  • Files stay in your browser
  • 100 MB per file

Mark review drafts, confidential material, internal copies or sample documents before circulation. The watermark is embedded visibly into the exported PDF while the original remains unchanged.

HOW TO

How to use Watermark PDF

  1. Choose one PDF.
  2. Enter the watermark text and select an opacity between 0.05 and 1.
  3. Process and inspect the watermarked copy before sharing it.

COMMON USES

Useful for everyday document work

  • Mark a document CONFIDENTIAL
  • Label drafts before review
  • Identify internal or sample copies

QUESTIONS & ANSWERS

Watermark PDF FAQ

Can I choose my own PDF watermark text?

Yes. Replace the default CONFIDENTIAL text with the label you need.

Can I change watermark transparency?

Yes. Use the opacity field to make the text lighter or stronger.

Does PaperGrid upload watermarked PDFs?

No. The supported watermark operation runs inside your browser.

Created by Sumit Verma. PaperGrid distinguishes working browser tools from unavailable concepts and documents material limitations. Last reviewed: 19 September 2026.

Read the privacy approach
Merge Split Compress Organize JPG to PDF

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WORKING PAPERGRID TOOLS

Free PDF tools with dedicated workspaces.

Choose a task-specific page for clear instructions, limitations and a working browser tool.

Merge PDFCombine multiple PDFs into one file. Split PDFCreate individual pages or selected ranges. Remove PDF pagesDelete unwanted pages from a copy. Extract PDF pagesCopy selected pages into a new PDF. Organize PDFReorder PDF pages into a new sequence. Add blank pagesInsert empty pages for notes, dividers or duplex printing. Scan to PDFCombine JPG or PNG scans into a PDF. Compress PDFReduce image-heavy PDFs with clear quality tradeoffs. Repair PDFAttempt to rebuild readable PDF structure. JPG to PDFTurn multiple images into one PDF. PDF to JPGRender PDF pages as downloadable images. HTML to PDFRender a simple HTML snippet as PDF. Rotate PDFRotate every page by 90, 180 or 270 degrees. Add page numbersNumber PDF pages in a selected position. Watermark PDFAdd a visible text watermark to every page. Crop PDFTrim equal margins from PDF pages.

Are PaperGrid PDF tools free?

Yes. The currently enabled browser tools require no account or payment.

Does PaperGrid upload my files?

Supported tools process selected files inside your browser. PaperGrid does not send those document files to its own server.

What is the file limit?

PaperGrid accepts supported files up to 100 MB each. Available memory on your browser and device may impose a lower practical limit.

BLOG & GUIDES

Practical help, kept out of your way.

Read workflows, privacy checks and original PDF benchmarks when you need the detail.

Browse all articles
JOB APPLICATIONSCombine a resume, cover letter and supporting files

Use a deliberate order, protect ATS readability and check the final upload.

 EXPENSE REPORTSMerge receipts into one review-ready PDF

Match receipt order to claim lines and catch missing or duplicate evidence.

 BOARD MEETINGSCreate an agenda-led board-pack PDF

Control source versions, sequence papers and complete a release check.

 PRIVACYVerify that PDF files are not uploaded

Use browser network tools and an offline check to test the claim yourself.

 SELECTED PAGESMerge only the pages you need from several PDFs

Preview, reorder, rotate or remove individual pages before combining them.

 OFFLINE USEPrepare the PDF merger for use without a connection

Choose Prepare offline use, confirm what is cached, then test with safe files offline.

 SECURITY MODELInspect PaperGrid's browser-enforced controls

Review same-origin network restrictions, disabled permissions, verification steps and honest boundaries.

 ORIGINAL DATASee the three-fixture PDF compression benchmark

Compare image-heavy, text-first and mixed results with exact byte decisions.

 MERGE INTEGRITYDoes merging preserve order and selectable text?

Inspect a reproducible six-page test with eight geometry, text and rendering checks.

 PAGE-ORDER DATADoes a cross-file page order survive export?

Inspect the six-page C2, A1, B2, C1, A2, B1 browser study and exact dataset.

 RESEARCH HUBBrowse reproducible PDF tests and datasets

Find benchmark methods, machine-readable results and explicit evidence boundaries in one place.

 CHANGELOGFollow verified PaperGrid releases

See when PDF features, tests, security controls and research evidence reached production.

 INDEPENDENT COMPARISONPaperGrid vs iLovePDF: which workflow fits?

Compare local browser processing, online uploads, merge controls, offline options and product breadth.

Repeatable workflows are coming next.

Workflow execution remains unavailable until every step can be validated, processed and exported as one trustworthy job.

01

Build onceChoose a sequence of tools.

02

Reuse instantlyRun it on the next batch.

03

Scale laterConnect the same flow to your API.

01UploadInput files
02MergeCombine
03CompressBalanced
04ProtectPassword
OUTPUTBoard-pack.pdf7.2 MB → 2.8 MB
PaperGrid SecurePolicy-aware document processing
LOCAL
Browser tools
REGION
Data residency
ACCESS
Team roles
AUDIT
Activity logs

Designed for everyday files. Ready for serious work.

PaperGrid separates browser-native operations from server-required processing, so teams can choose the right execution model for each document workflow.

  • Local-first processing for supported tools
  • No temporary upload for unavailable tools
  • Clear status before you choose a file
Read our privacy approach

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