Merge GSTR-1 and GSTR-3B PDF for Reconciliation
Overview
GST reconciliation requires you to match GSTR-1 (outward supplies) against GSTR-3B (tax paid) for the same tax period. Auditors and CAs want both PDFs side by side. Merging them into one document makes the reconciliation workflow faster and the file easier to email.
How to Use This Tool
Download GSTR-1 and GSTR-3B PDFs from the GST portal for the same tax period. Drop both into /merge in order (R1 first, R3B second). Download as GSTIN_TAXPERIOD_R1_R3B.pdf.
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Merge PDF →Frequently Asked Questions
Why merge instead of zipping?
Auditors prefer one PDF to scroll through. A merged PDF with bookmarks (R1 page 1, R3B start) opens in any viewer. A zip needs unzipping plus a viewer for each file.
Should I include GSTR-2B as well?
Yes for full ITC reconciliation. Drop R1, R3B, and 2B in the merge tool in that order. The CA reconciles ITC claimed (R3B) against ITC available (2B) against supplier filings (R1 vendors).
Will GST portal PDFs lose their digital signature on merge?
No. PDF Mavericks copies pages as-is; the GST portal's signature and timestamp on each page remain intact and verifiable.