About

This tool addresses the fundamental incompatibility between reflowable e-book formats and fixed-layout documentation. While .epub files are designed for dynamic screen resizing, they lack the permanence and citation stability required for academic referencing, physical archiving, or professional printing. This engine utilizes a client-side parsing algorithm to transmute the Open Container Format (OCF) into a vector-based PDF v 1.7 standard.

Accuracy in this conversion is paramount. A standard e-reader calculates page turns dynamically, meaning Page 10 on a phone might be Page 4 on a tablet. This tool solidifies that fluidity into a static coordinate system xy, allowing for precise referencing. Furthermore, by processing data locally within your browser's memory heap, we eliminate the privacy risk associated with uploading intellectual property to remote servers.

Formulas

When converting text flow into a fixed layout, the engine must calculate the Safe Print Area A_safe by subtracting the cumulative margins from the total sheet dimensions. If the page width is W and height is H, with margin m:

A_safe = {

W_content = W − 2mH_content = H − 2m

Reference Data

Format Group	Standard Name	Dimensions (mm)	Dimensions (in)	Point Size (pt @72dpi)	Primary Use Case
ISO A Series	A0	841 × 1189	33.1 × 46.8	2384 × 3370	Technical Blueprints
	A1	594 × 841	23.4 × 33.1	1684 × 2384	Posters / Maps
	A2	420 × 594	16.5 × 23.4	1191 × 1684	Calendars
	A3	297 × 420	11.7 × 16.5	842 × 1191	Double Page Spreads
	A4	210 × 297	8.3 × 11.7	595 × 842	Standard Documents
	A5	148 × 210	5.8 × 8.3	420 × 595	Novels / Handbooks
	A6	105 × 148	4.1 × 5.8	298 × 420	Postcards
ISO B Series	B4	250 × 353	9.8 × 13.9	709 × 1001	Newspapers
	B5	176 × 250	6.9 × 9.8	499 × 709	Paperback Books
North American	Letter	216 × 279	8.5 × 11.0	612 × 792	US Standard Office
	Legal	216 × 356	8.5 × 14.0	612 × 1008	Contracts
	Tabloid	279 × 432	11.0 × 17.0	792 × 1224	Newsletter
	Executive	184 × 267	7.25 × 10.5	522 × 756	Personal Stationery
	Government Letter	203 × 267	8.0 × 10.5	576 × 756	US Govt Forms
Book Trade	Trade	152 × 229	6.0 × 9.0	432 × 648	Hardcover Fiction
	Digest	140 × 216	5.5 × 8.5	396 × 612	Paperback Non-fiction
	Pocket	108 × 175	4.25 × 6.87	306 × 495	Mass Market Paperback
ANSI Engineering	ANSI C	432 × 559	17.0 × 22.0	1224 × 1584	Engineering Diagrams
	ANSI D	559 × 864	22.0 × 34.0	1584 × 2448	Large Scale Plans

Frequently Asked Questions

Yes. Our advanced parsing engine identifies images within the EPUB container (JPEG, PNG, GIF), converts them to a PDF-compatible format, and scales them to fit within your selected page margins while preserving the aspect ratio.

A4 and Letter pages are often too wide for comfortable long-form reading. "Trade" (6x9 in) and "Digest" (5.5x8.5 in) are industry standards for novels because they limit the line length to 60-75 characters, which significantly reduces eye strain.

The tool automatically attempts to scrape metadata from the content.opf file. However, if the source file has missing or incorrect tags, the PDF will inherit those blanks. We recommend ensuring your EPUB is clean before conversion.

Structurally, yes. However, EPUB is reflowable (HTML-based), while PDF is fixed. Some complex CSS styling (like floating sidebars or complex tables) may be simplified to ensure they fit strictly within the print margins.

Since processing happens in your browser's RAM, the limit depends on your device. Most modern laptops can handle files up to 100MB. Mobile devices may struggle with files larger than 30MB.