PDF Tools & Calculators
Free PDF tools for conversion, compression, merging, splitting, editing, OCR, signing, locking and document preparation.
Browse pdf tools15 resources in this topic. Start with the featured tools below, browse the paginated directory, or use PROFENG search when you already know the calculation, conversion, comparison or workflow you need.
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Showing 1–15 of 15 resources.
Compress PDF
Reduce PDF file size with lossless optimization or stronger image-based compression modes, entirely in your browser.
Merge PDF
Combine multiple PDF files into one document, reorder them and remove unwanted files before merging.
Split PDF
Split a PDF into separate files using page ranges such as 1-3, 4, and 5-7.
Sign PDF
Add a visible typed signature mark to a selected PDF page with position, size and optional date controls.
OCR PDF
Recognize text from scanned PDF pages in the browser and download extracted OCR text.
Add Page Numbers to PDF
Add sequential page numbers to every PDF page with selectable position and starting number.
PDF to JPG
Convert each PDF page to a high-quality JPG image and download one image or a ZIP of all pages.
Edit PDF
Add a text overlay to a selected PDF page with position and font-size controls.
Watermark PDF
Add a centered diagonal text watermark to every PDF page.
Stamp PDF
Add APPROVED, DRAFT, CONFIDENTIAL, REVIEWED or PAID stamps to selected PDF pages.
Lock PDF
Create a password-protected PDF copy in the browser by rebuilding pages into an encrypted PDF.
Translate PDF
Extract text from a text-based PDF and machine-translate it between common languages with explicit consent.
Rotate PDF
Rotate all or selected PDF pages by 90, 180 or 270 degrees.
Repair PDF
Rebuild a readable PDF structure to fix some malformed or poorly generated PDF files.
JPG to PDF
Convert JPG, PNG or WebP images into one ordered PDF with A4 or US Letter page options and margins.
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